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Ulrich Elkmann Offline




Beiträge: 12.248

01.11.2022 15:06
#251 RE: USSF-44, Falcon Heavy Antworten

Zitat
Eric Berger@SciGuySpace
Even four years later, a side-by-side rocket booster landing is wild. The engineering behind this is insane.
2:52 PM · Nov 1, 2022·TweetDeck


https://twitter.com/SciGuySpace/status/1587442361881300993



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Wren Offline



Beiträge: 8

01.11.2022 17:01
#252 RE: USSF-44, Falcon Heavy Antworten

Zitat
Eric Berger@SciGuySpace
Even four years later, a side-by-side rocket booster landing is wild. The engineering behind this is insane.
2:52 PM · Nov 1, 2022·TweetDeck

Ich hab's gesehen und mir lief wieder dieser wohltuende Schauer den Rücken hinunter, den ich als Kind gespürt hatte! Science-Fiction-Actoin!

Ulrich Elkmann Offline




Beiträge: 12.248

01.11.2022 19:37
#253 RE: USSF-44, Falcon Heavy Antworten

Gestern der Start der Mengtian-Wissenschaftsmoduls zum Tiangong-Raumstation, an der Spitze einer CZ-5B. Startmasse 849 t.
Heute Start von USSF-44 mit einer Falcon Heavy. Startmasse 1420 t.
Am Freitag Ausrollen des Space Launch System zum geplanten Start am 14. November. Startmasse 2750 t.

Schwergewichtsmonat. 🏋️

Zitat
NASA's Exploration Ground Systems @NASAGroundSys
This afternoon, @NASA's crawler-transporter 2 arrived at the enormous exterior door of the Vehicle Assembly Building's High Bay 3 at @NASAKennedy. The crawler will carry @NASA_SLS and @NASA_Orion to Pad 39B no earlier than Nov. 4.
7:23 PM · Nov 1, 2022·Twitter for iPhone



https://twitter.com/NASAGroundSys/status/1587510645540507649



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

01.11.2022 21:47
#254 RE: Fangenspielen Antworten

Von Ende Mai.

Zitat von Ulrich Elkmann im Beitrag Eine wirkliche Mondrakete. Update aus der Etappe
Zitat von Ulrich Elkmann im Beitrag Eine wirkliche Mondrakete. Update aus der Etappe
Weder NASA noch SpaceX, hat aber auch mit dem Griff nach den Sternen zu tun. Rocket Lab haben gestern angekündigt, daß sie beim nächsten Start der Electron versuchen wollen, die Startstufe nicht sanft auf dem Erdboden zu landen, sondern in der Luft abzufangen.



Der Versuch steht gerade in Neuseeland an. Countdown bei minus 10 Minuten.




Und gerade kommt das hier rein:

Zitat
Rocket Lab@RocketLab
We're bringing back the helicopter.
Catch Me If You Can - our next recovery mission to catch Electron in the sky with a helicopter - is set to launch in just three days' time. More info: https://bit.ly/3zzfDWX
9:31 PM · Nov 1, 2022·Twitter Web App


https://twitter.com/RocketLab/status/1587542822131232768

Zitat
LAUNCH WINDOW Rocket Lab is targeting no earlier than Nov 4 UTC / Nov 5 NZDT for the launch.

Launching from Pad B at Rocket Lab Launch Complex 1 on New Zealand’s Mahia Peninsula, the “Catch Me If You Can” mission will be Rocket Lab’s 32nd Electron launch overall and second reusability mission of 2022. Electron will carry a science research satellite by space systems provider OHB Sweden for the Swedish National Space Agency (SNSA). The Mesospheric Airglow/Aerosol Tomography and Spectroscopy (MATS) satellite is the basis for the SNSA’s science mission to investigate atmospheric waves and better understand how the upper layer of Earth’s atmosphere interacts with wind and weather patterns closer to the ground. MATS was originally due to fly on a Russian launch service before the mission was manifested on Rocket Lab’s Electron.

Using a modified Sikorsky S-92 large helicopter, Rocket Lab will attempt to capture the Electron rocket’s first stage mid-air as it returns from space after launch.

Shortly before lift-off, the customized Sikorsky S-92 recovery helicopter will deploy to the capture zone at sea, approximately 160 nautical miles off New Zealand’s Banks Peninsula.Once launched, Electron’s first and second stages will separate at approximately T+2 : 32 minutes into the mission. The MATS payload will continue to orbit onboard the rocket’s second stage while Electron’s first stage descends back to Earth. At this point in the mission, Electron’s return is expected to reach speeds of up to 8,300km (5,150 miles) per hour and temperatures of up to 2,400 degrees C (4,352 F).At approximately T+7: 2 0 minutes after lift-off, Electron’s first parachute will deploy followed shortly after by the rocket’s main parachute. The double deployment of parachutes helps to slow the returning first stage to 0.4% of its top speed during descent: from 8,300km per hour to just 36km per hour.As Electron enters the capture zone, Rocket Lab’s recovery helicopter will match the rocket’s speed and descent from above, attempt to secure the trailing parachute engagement line to the helicopter via a hook at the end of a long line.Once captured and secured, Electron will be transported back to land and to Rocket Lab’s Auckland Production Complex. There, technicians will receive and prepare the stage for inspection to assess its suitability for re-use.



https://www.rocketlabusa.com/assets/Uplo...ress-Kit-v6.pdf

Noch mal zur Erinnerung: die Einfangmethode vermittels eines Hubschraubers ist im Lauf der Raumfahrtgeschichte einmal verwendet worden - im Rahmen der ersten US-Spionagesatelliten des "Corona"-Programms, und zwar die Unterserie der Keyhole-Satelliten, die nach Beendigung über Mission einen Kanister mit belichteten Filmrollen Richtung Erde abwarfen. Diese Missionen sind gleich dutzendmal schiefgelaufen; der erste Einfang gelang mit Discoverer 13 im August 1960; in der Regel war auf den Bildern nur unscharfes Rauschen zu erkennen. Fun fact: Im Film "Ice Station Zebra" von 1968, mit Rock Hudson & Ernest Borgnine in der Hauptrolle (& Patrik McNeehan, "John Steed" aus The Avengers), den sich Howard Hughes in seinem Privatkino im Las Vegas hunderte von Malen hat vorführen lassen lassen, geht es um die Bergung solch einer Filmrolle.

Zitat
Ice Station Zebra, however, was Hughes' favorite distraction. Which isn't surprising. As a germ phobic and fervent anti-communist, with an interest in high-tech machinery, Ice Station Zebra was ideal escapist fare for Hughes. The plot involves a American Naval hero (Rock Hudson), a Cold War Soviet villain (Ernest Borgnine), lots of military hardware (helicopters, subs), and takes place primarily in one location: the Arctic Circle, a pollen-, bacteria-, virus-, FBI-, and paparazzi-free zone.

In the billionaire's final months, aids reported that the turgid action-adventure film ran through the projector over 150 times in an endless loop. "Ice Station Zebra will probably remain indelibly imprinted on the minds of his entourage for the rest of their lives," wrote James Phelan in Howard Hughes: The Hidden Years.


https://www.wired.com/2015/12/howard-hughess-screening-room/

Allerdings wurde die Qualität gegen Ende des Programms deutlich besser. Hier eine Aufnahme der Kremls von 1970: https://nsarchive2.gwu.edu/NSAEBB/NSAEBB13/2.jpg



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

02.11.2022 23:14
#255 RE: SpaceX Antworten

Gestern war der erste Streich, doch der zweite folgt sogleich.

Zitat
One day after launching a triple-body Falcon Heavy rocket a few miles up the coast, SpaceX rolled its workhorse Falcon 9 rocket to a launch pad at Cape Canaveral Wednesday for a late night mission to haul a Eutelsat television broadcasting satellite into orbit.

Eutelsat’s Hotbird 13G communications satellite folded up for launch on top of the Falcon 9 rocket is the twin of the Hotbird 13F spacecraft, which launched Oct. 15 on a previous SpaceX Falcon 9 mission.

Now the second of Eutelsat’s new pair of TV broadcasting satellites is ready to fly. SpaceX has a 116-minute launch window available Wednesday night beginning at 11:26 p.m. EDT (0326 GMT Thursday).

Ground teams moved the Falcon 9 rocket to pad 40 at Cape Canaveral on Wednesday, then raised it vertical in preparation for the late-night countdown. Forecasters predict a 90% chance of favorable weather for the launch window Wednesday night.


https://spaceflightnow.com/2022/11/02/sp...n-as-many-days/

Elon Musk hat vor einigen Wochen erklärt, SapceX würde für 2022 60 Starts avisieren. Dies ist Nr. 51.



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

03.11.2022 13:11
#256 RE: Fangenspielen Antworten

Zitat von Ulrich Elkmann im Beitrag #254

Zitat
Rocket Lab@RocketLab
We're bringing back the helicopter.




Zitat
Rocket Lab says it will make a second mid-air recovery attempt of an Electron booster during the launch later this week of a Swedish scientific satellite.

Rocket Lab announced Nov. 1 plans for its next Electron launch, a mission it calls “Catch Me If You Can.” The launch is scheduled for Nov. 4 at 1:15 p.m. Eastern from the company’s Launch Complex 1 in New Zealand.

The launch will be the second attempt to recover the Electron’s first stage, descending under a parachute, using a helicopter. In the first attempt May 2, a hook hanging from the helicopter grabbed the parachute, but the pilot released it moments later after noticing what the company called “different load characteristics than what we’ve experienced in testing.” The stage instead splashed down and was recovered by a boat.

“Our first helicopter catch only a few months ago proved we can do what we set out to do with Electron, and we’re eager to get the helicopter back out there and advance our rocket reusability even further by bringing back a dry stage for the first time,” Peter Beck, chief executive of Rocket Lab, said in a statement about the upcoming launch.

Beck said in the months after the launch that the company had been doing additional training on the helicopter recovery itself, rather than changes to the rocket and its recovery systems. “We haven’t made any changes to the vehicle or any of the recovery systems,” he said in an interview in late June. “It’s purely down to getting the technique right and just all the mission operations that go into that.”
...
The upcoming launch will carry a single satellite, called MATS, or Mesospheric Airglow/Aerosol Tomography and Spectroscopy. The satellite, funded by the Swedish National Space Agency and built by OHB Sweden with some components provided by AAC Clyde Space, will study waves in the upper atmosphere and how they affect weather and climate.

MATS was originally scheduled to fly as a rideshare on a Soyuz rocket but the Swedish government canceled those plans in response to Russia’s invasion of Ukraine. The spacecraft, weighing about 50 kilograms, will go into a dawn-dusk sun-synchronous orbit at an altitude of 585 kilometers.


https://spacenews.com/rocket-lab-to-atte...lectron-launch/



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

04.11.2022 18:07
#257 RE: Fangenspielen Antworten

Livestream für Catch Me If You Can von Mahia läuft: https://www.youtube.com/watch?v=PVTwEn9GdsA
T minus 20 Minuten.

Stufentrennung erfolgt in 80 km Höhe. Die Zwetistufe bringt die Nutzlast in die Kreisbahn. Die Startstufe fällt zunächst frei nach unten, mit einer Spitzengeschwindigkeit von 8000 km/h und einer Aufhitzung auf 2000°C. In 13 km Höhe, nach 5 Minuten gestuertem Fall, wir der Bremsfallschirm entfaltet, eine Minute später der Hauptfallschirm, der den Fall auf 36 km/h verlangsamt. Der Helikopter manöviert sich oberhalb das Hauptfallschirms und soll die die Verbinungsleine zwischen Haupt- und Bremsfallschirm mit einer Trosse & einem Haken am unteren Ende erfassen. Wenn das gelingt, wird die Startstufe zum Startplatz zurückgeflogen.

Die Gesamtrakete ist 18 m hoch; sie kann 150 kg in den niedrigen Orbit befördern. Die Startstufe ist 11,5 m hoch und wiegt eine Tonne.

MEZ 18:15. T minus 12 Minuten. Statuscheck aller Systeme gerade "go".



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

04.11.2022 18:23
#258 RE: Fangenspielen Antworten

18:22. T minus 5 Minuten.

Mir fällt gerade ein, daß es die Neuseeländer waren, die Bungee Jumping erfunden haben. Das hier dürfte die "Turned Up to 11!"-Version sein.
Der Helikopter ist eine umgebaute Sikorski S92.
T minus 1 Min. Lox Load is complete.
MEZ 18:28. Liftoff.
2:34. Stufentrennung.
3:14. Absprengung der Schanzverkleidungen.
5:10. Links im Bild der Stream auf der fallenden Startstufe; rechts die Brennkammer der Zweitstufe. Kommt einem irgendwie bekannt vor.



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

04.11.2022 18:37
#259 RE: Fangenspielen Antworten

8:28. Links im Bild jetzt die Übertragung aus dem Helikopter. Die gelbe Schlange links oben ist die Fangtrosse.
13:00. Der schwedische Satellit MATS nähert sich der Eiskante der Antarktis.
17:56. Update. Das Einfangen ist mißlungen. Für den Fall befindet sich ein Bergungschiff an der Position.

Die Stufe kann auch wiederverwendet werden, wenn sie aus dem Wasser geborgen wird; allerdings ist der Reinigungsprozess aufwendiger.
Am 1. September hat Rocket Lab mit einem der vier Motoren der Electron, die Ende Mai ins Wasser gefallen ist, einen Brennkammertest von 200 Sekunden Dauer durchgeführt.



Andere Raumfahrtnachrichten von heute:

Von 6 Uhr bis 15 UHR MEZ ist das SLS/Artemis I wieder zur Startrampe in Cape Canaveral transportiert worden.
Um 14 MEZ ist die Zweitstufe der Langer Marsch 5B, die am Hallowe'en das Mengtian-Modul zum chinesischen Raumstation gestartet hat, über dem Pazifik vor der mexikanischen Küste in die Atmosphäre eingetreten und verglüht. Die Zweitstufe hat(te) ein Gewicht von 38 Tonnen.



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

04.11.2022 20:08
#260 RE: Fangenspielen Antworten

Zitat
Endemic Rooster @EndemicRooster
Replying to @Peter_J_Beck
Do you already have any insight on why the attempt was not pursued through ?
7:52 PM · Nov 4, 2022·Twitter for iPhone

Peter Beck@Peter_J_Beck
Rocket telemetry dropped out (it happens a bit during reentry) but we did not regain a solid link in time. Without that link it’s just not safe to put the helicopter into the recovery zone, so we stood it off. The great thing about recovery is you get it back to see what happened
8:00 PM · Nov 4, 2022·Twitter for iPhone


https://twitter.com/Peter_J_Beck/status/1588607021649395712



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

05.11.2022 18:14
#261 RE: Fangenspielen Antworten

*Nächster* Start ins All. Morgen, 6. November.

Zitat
The Wallops Range L-24 hour forecast issued today for tomorrow’s Nov. 6 launch of Northrop Grumman’s 18th resupply mission to the International Space Station continues to be 80% favorable for weather conditions, with the main concern being a slight chance of low-level clouds that may potentially violate cloud ceiling requirements.

Unseasonably warm conditions and tranquil weather are expected through this weekend. A cold front will be located over the Appalachian Mountains Sunday morning, providing light southerly surface flow and upper-level cirrus cloudiness over the Wallops Region. An increase of low-level moisture over the Wallops region due to the light winds may provide some low-level clouds over the Wallops region near launch time. At this time, the primary concern for launch would be a slight chance of low-level clouds.

NASA commercial cargo provider Northrop Grumman is targeting 5:50 a.m. EST Sunday, Nov. 6, for the launch.


https://blogs.nasa.gov/ng-crs-18/



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

10.11.2022 12:31
#262 RE: LOFTID Antworten

In Sachen Raumfahrtinnovation läuft in diesen Minuten gerade der LOFTID. Dabei geht es darum, eine neue Technik für einen "aufblasbaren Hitzeschild" für den Wiedereintritt in die Atmosphäre zu testen.

Zitat
Since NASA’s inception in 1958, the agency has relied heavily on rigid aeroshells (a protective shell composed of a heat shield and a back shell), parachutes, and retro-propulsion (rockets) to decelerate people, vehicles, and hardware during orbital entry, descent, and landing operations. The LOFTID demonstration is poised to revolutionize the way NASA and industry deliver payloads to planetary destinations with atmospheres.

After more than a decade of development of Hypersonic Inflatable Aerodynamic Decelerator (HIAD) technology, including two suborbital flight tests, the LOFTID orbital flight test is the next step. This return from orbit demonstration provides an entry environment relevant to many potential applications, paving the way for its use on future missions. The LOFTID re-entry vehicle, at 19.7 feet (6 meters) diameter, will be the largest blunt body aeroshell to ever go through atmospheric entry.

The HIAD design consists of an inflatable structure that maintains its shape against the drag forces, and a protective flexible thermal protection system that withstands the heat of reentry. The inflatable structure is constructed with a stack of pressurized concentric rings, or tori, that are strapped together to form an exceptionally strong blunt cone-shaped structure.

The rings are made from braided synthetic fibers that are, by weight, 10 times stronger than steel. A flexible thermal protection system insulates the rings from the searing heat of atmospheric entry; LOFTID can withstand temperatures in excess of 2900°F (1600°C). It’s constructed with three layers: an exterior ceramic fiber cloth layer to maintain integrity of the surface, a middle layer of insulators to inhibit heat transmission, and an interior layer that prevents hot gas from reaching the inflatable structure. The flexible thermal protection system is also foldable, packable, deployable, and tailorable. Because it is flexible, it takes up less room in the rocket and allows the design to be scalable.



https://blogs.nasa.gov/jpss-2/2022/11/10...of-heat-shield/

Zitat
LOFTID Aeroshell Fully Inflated; Re-entry in 25 Minutes

At this time, the aeroshell should have reached a full inflation pressure of 19 psi. LOFTID is only sending limited real-time data during the demonstration. Full data, including confirmation of the final inflation pressure, will be confirmed after landing and recovery.

LOFTID is now coasting toward the atmosphere and re-entry is expected to start in approximately 25 minutes.


https://blogs.nasa.gov/jpss-2/2022/11/10...-in-30-minutes/

Zitat
The team was able to visually confirm full inflation of the re-entry vehicle. LOFTID is now estimated to be at about 78 miles in altitude, the point the LOFTID team considers the start of atmospheric re-entry.



Video: Aufblasen des Hitzeschilds: https://twitter.com/SpaceflightNow/statu...669952486449152
Video: Abtrennung des LOFTID-Schilds von der Centaur-Oberstufe: https://twitter.com/ulalaunch/status/1590670337603416064

Zitat
According to the team’s predictions, LOFTID should have slowed down to Mach 0.7 — from a maximum speed of Mach 29 — marking the end of the demonstration and data collection. As LOFTID approaches splashdown in approximately 16 minutes, the ejectable data module will jettison and the parachute will deploy.


https://blogs.nasa.gov/jpss-2/



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

10.11.2022 13:20
#263 RE: LOFTID Antworten

Zitat
Jeff Foust@jeff_foust
LOFTID has now definitely splashed down. Recovery ship en route to pick it up.
1:06 PM · Nov 10, 2022·Tweetbot for Mac


https://twitter.com/jeff_foust/status/1590677327411023872

Zitat
LOFTID landed close to the recovery ship. After assessing the situation, the crew aboard the Kahana-II have begun preparation for recovery operations, which will bring LOFTID aboard the vessel. NASA will post updates on the recovery process and the results of the demonstration as more information becomes available.


https://blogs.nasa.gov/jpss-2/

Zitat
The LOFTID team successfully retrieved the mission’s ejectable data module from the Pacific Ocean on Thursday morning. The data module resembles a large lemon and holds a backup copy of the data recorded during LOFTID’s demonstration. Another copy of the data is stored aboard the heat shield itself, which was already recovered by the team.

The recovery vessel will now make its way back to port. The LOFTID team will analyze the recorded data and inspect the heat shield to assess how the technology performed. Additional updates will be provided as available.



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

10.11.2022 21:46
#264 RE: LOFTID Antworten

Noch zu LOFTID, um Unklarheiten zu beseitigen.

Der Hitzeschild an der Spitze der Rakete ist auf Orbitalgeschwindigkeit gebracht worden (für eine Umlaufbahn in 145 km Höhe). Der Hitzeschild bildet einen ziemlich gewichtigen Teil für zurückkehrende Raumfahrzeuge; bei den Dragon-Kapseln von SpaceX mißt er 4 Meter im Durchmeser, bei Artemis 5 m; bei Artemis beträgt das Gewicht der Kacheln, aus denen er besteht und die sich beim Wiedereintritt auf mehr als 2700 Grad erhitzen, gute 2,3 Tonnen. Der jetzt getestete Schirm ist zusammenpackbar wie ein Fallschirm; er besteht aus drei dicken Lagen: der äußeren, die verbrennt, einer mittleren, die die meiste Hitze ableitet und einer unteren Rippenstruktur, die dem Ganzen Form verleiht und das Raumfahrzeug/die Nutzlast thermisch isoliert. Ausgefaltet hat der Schirm einen Durchmesser von 6,9 Metern; und ein Gesamtgewicht von 1,09 Tonnen. Die "Sockelfläche" einer damit ausgestatteten Kapsel kann also um das 2- bzw. 3fache größer ausfallen; bei gleichzeitiger Gewichtsreduzierung des Schirms um 60%.



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

12.11.2022 16:36
#265 RE: Galaxy 31 & 32 Antworten

Cape Canaveral, Startrampe 40. In 30 Minuten Start von Galaxy 31 und Galaxy 32 von Intelsat mit einer Falcon 9. Das 3. Mal in diesem Monat, daß ein Booster von SpaceX keine weiche Landung hinlegt. Der Treibstoff dient dazu, die beiden Kommunikationssatelliten in den geostationären Orbit zu bringen. Die beiden Satelliten mit einem Gesamtgewicht von 6,6 t ersetzen die bisherigen Komsats Galaxy 16 und 23. Die Startstufe hat bislang 13 Starts hinter sich gebracht, davon 10 Starlink-Missionen.

https://www.youtube.com/watch?v=ZsNkuFfJGi4

PS. "Kom(m)sat." Im Deutschen scheint es die Kontraktion bislang nicht zu geben; im Englischen wird sie von alten SF-Lesern i.d.R. mit J.G.Ballards Story "The Comsat Angels" (1968) in Verbindung gebracht. Zuerst scheint sie von Arthur C. Clarke verwendet worden zu sein, in "The Coming of the Space Age" (1967). Von Ballard hatte auch diese Combo den Namen: https://de.wikipedia.org/wiki/The_Comsat_Angels

Nicht zu velwechsern mit Kommissariat. https://en.wikipedia.org/wiki/Commissari...popular_culture

Die erste Single der Comsat Angels vom März 1979 war übrigens "Red Planet":

Point me at the red planet
I want to get my hands on it
Make sure I can take my car
When I go to Mars


Waiting 'round for my wings to heal
Sit in the sand for a thousand days
I'm not scared of this crumbling land
As in my hands it's just a piece of clay

On the first day I'll get some atmosphere
On the second I'll set up the lights
On the third day I'll get some EVA
On the fourth day I will see the sights

Over there I can see palm trees!
Just here - a train station
Some space for a couple of bars
A telescope to look at the stars


Elon, anyone?



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

17.11.2022 20:33
#266 RE: LOFTID Antworten

LOFTID. Nachbereitung.

Zitat
Jeff Foust@jeff_foust
NASA says they’re in the process of finalizing a Space Act Agreement with ULA for using the LOFTID technology for the company’s SMART reuse effort.

General theme of the briefing: just starting data analysis from the LOFTID flight, but everything so far shows it performed very well; “proved a lot of people right,” says LOFTID chief engineer John DiNonno.

Kortes says scaling up LOFTID (six meters across) would be a next step; need something 18 to 20 meters across for Mars landers.
8:28 PM · Nov 17, 2022·Tweetbot for Mac


https://twitter.com/jeff_foust/status/1593325337768763395



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

20.11.2022 17:14
#267 RE: LOFTID Antworten

OT. Ist aber raumfahrtbezogen, deshalb hier.

Zitat von November 14, 2022
Giant satellite outshines stars, sparking fresh concerns for astronomers. Transmissions from BlueWalker 3 also pose threat to radio observatories

Since launching in September, the communications satellite BlueWalker 3 has orbited Earth, curled up as if in a cocoon. Now, it has hatched, unfurling an antenna array as big as a highway billboard, its maker, Texas-based AST SpaceMobile, announced today. Astronomers say the satellite’s brightness has spiked by a factor of 40, rivaling the brightest stars in the sky.

“It’s like exactly what astronomers don’t want,” says astronomer Meredith Rawls of the University of Washington, Seattle, who helps run the International Astronomical Union’s Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference. “It’ll show up as a superbright streak in images and potentially saturate camera detectors at observatories.”

Thousands of commercial satellites already litter low-Earth orbit. The 64-square-meter BlueWalker 3 is the largest one yet, considerably brighter than any of the Starlink satellites deployed by SpaceX, says astronomer John Barentine of Dark Sky Consulting. On top of the light pollution, BlueWalker 3 is testing a transmission technology that threatens to trespass into the frequencies used by radio observatories on Earth, he says. “This just fundamentally feels different,” he says. “We’re in new territory here.”

AST SpaceMobile hopes the satellite will pave the way for the first space-based cellular broadband network, improving coverage by transmitting radio waves directly between satellites and mobile phones rather than relaying signals through cell towers. To reach phones on the ground, the satellite uses a large, reflective antenna roughly the size of a racquetball court that twinkles brightly as it orbits.

BlueWalker 3 is a prototype for a constellation of 168 even larger satellites called BlueBirds. AST SpaceMobile CEO Abel Avellan has argued his fleet, which would pale in comparison with the tens of thousands of planned Starlink crafts, won’t interfere with optical astronomy. But Barentine says even a small crew of these larger, flashier orbiters will obstruct ground-based telescopes’ ability to detect space objects—including potentially hazardous asteroids.

There are even brighter objects in the sky with a history of photobombing telescopes. For example, the International Space Station (ISS) is typically about 40 times brighter than recent observations of BlueWalker 3. But astronomers have real-time access to the precise location of the ISS, allowing them to reorient their cameras or close the shutters when it passes by. AST SpaceMobile has yet to respond to astronomers’ requests to clue them into its satellite’s whereabouts, Barentine says. “We’re trying to do this in a spirit of cooperation,” he says, “but there are still a lot of companies that we just haven’t heard from yet.” In a statement to Science, a spokesperson for AST SpaceMobile says, “We’re eager to use the newest technologies and strategies to mitigate potential impacts to astronomy. We are actively working with industry experts on the latest innovations, including next-generation anti-reflective materials.”

Optical astronomers aren’t the only researchers threatened. The direct-to-mobile cell service that BlueWalker 3 and its successors aim to provide requires a much stronger beam and broader use of the radio spectrum than existing networks, sparking concern among radio astronomers. On Earth, various regulatory bodies prohibit companies from operating in protected “radio-quiet zones” and from using certain frequencies that radio observatories use to probe the universe. But those regulations don’t apply to space.


https://www.science.org/content/article/...rns-astronomers



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

22.11.2022 21:21
#268 RE: LC-39A Antworten

Cape Canaveral, Startrampe 39A. Nächster Start. Falcon 9, mit einer Cargo-Dragon-Versorgungskapsel für die ISS, CRS-26. T minus 33 Minuten.

https://www.youtube.com/watch?v=uY_q5UPGA-g

Wie es aussieht, spielt das Wetter nicht mit.

21:51. Start aufgrund der Wetterbedinungen abgesagt; Countdown wird bis auf minus 60 Sekunden fortgesetzt. Nächste Startgelegenheit ist Samstag.



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

24.11.2022 14:59
#269 RE: LC-39A Antworten

ZR, Mai 2020:

Zitat
Doch zunächst zum Wichtigen: Die Frage: "wer ist Elon Musk?" läßt sich recht schlüssig bescheiden. Die Antwort lautet:

Elon Musk ist D. D. Harriman.



Robert Silverberg, "Reflections," Asimov's Science Fiction, July-August 2021, "Memories of the Space Age":

Zitat
There is nothing new, by now, in sending astronauts to the space station.What is significant about that May 2020 launch is that, for the first time, the spacecraft was designed and built by a private corporation, SpaceX, an enterprise of the dynamic and eccentric entrepreneur Elon Musk, whose main company has given the world the Tesla electric car. Musk is one of a small group of billionaires—Jeff Bezos of Amazon is another, and Richard Branson of Virgin Galactic a third—who are putting up their own funds and those of the corporations they head in order to resume mankind’s exploration of space after much too long a hiatus. If the Age of Space can be said to have begun when the Soviet Union put the first Sputnik into orbit in 1957, this can be seen as the beginning of the next phase, since all previous ventures beyond the atmosphere have been sponsored and controlled by government agencies. This, I think, marks the opening of the real Space Age, the one in which ventures into the unknown are made not for reasons of national prestige or to further the ambitions of some politician, but simply because bold entrepreneurs think it is time for humanity to move on from its earthbound limitations into an era of adventure and discovery that is a rightful continuation of a process of centrifugal movement that has carried mankind from its primordial zone of origin in Africa to the farthest tip of South America and the distant shores of Asia, and have the wherewithal to make it happen. It is a step that Robert A. Heinlein predicted in his 1940 story,“Requiem,” in which Delos D. Harriman, a sort of prototype of Musk and Bezos and Branson, founds a corporation that makes the first space trips to the Moon, and eventually goes there himself to find his final resting place.



https://www.asimovs.com/wp-content/uploa...e_Space_Age.pdf



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

26.11.2022 19:54
#270 RE: LC-39A Antworten

Zitat von Ulrich Elkmann im Beitrag #268
Cape Canaveral, Startrampe 39A.


Neuer Starttermin in 25 Minuten.

https://www.youtube.com/watch?v=WPh6jGjSpt8

Zitat
After a launch attempt earlier in the week was scrubbed due to bad weather, SpaceX will try again Saturday to send a Dragon cargo capsule to the International Space Station with nearly four tons of supplies and experiments. Liftoff on a Falcon 9 rocket from Kennedy Space Center is set for 2:20 p.m. EST (1920 GMT).

SpaceX called off the first launch attempt for the resupply mission Tuesday due to rainfall and cloud cover at the Florida spaceport. The Falcon 9 rocket remained on the launch pad at Kennedy to await the next launch opportunity Saturday.

SpaceX was unable to launch the cargo mission around the Thanksgiving holiday, a period of busy travel in the United States, because the Federal Aviation Administration wanted to ensure airspace is clear for commercial airline traffic.

There is a 70% chance of favorable weather for Saturday’s launch attempt. The main weather concerns are rain showers and cumulus clouds.

Assuming the Dragon capsule takes off Saturday, it will dock with the Harmony module on the International Space Station at 7:30 a.m. EST (1230 GMT) Sunday. Astronauts on the space station will open hatches and begin unpacking cargo inside the pressurized compartment of the Dragon spacecraft.


https://spaceflightnow.com/2022/11/26/fa...-live-coverage/

MISSION STATS:
187th launch of a Falcon 9 rocket since 2010
196th launch of Falcon rocket family since 2006
1st launch of Falcon 9 booster B1076
1st flight of Dragon capsule C211
160th Falcon 9 launch from Florida’s Space Coast
57th SpaceX launch from pad 39A
151st launch overall from pad 39A
6th launch of an upgraded Cargo Dragon vehicle
26th SpaceX cargo mission to the International Space Station
53rd Falcon 9 launch of 2022
54th launch by SpaceX in 2022
52nd orbital launch attempt based out of Cape Canaveral in 2022


Min. 7:45 Landung der Startstufe auf der Just Read the Instructions.
9:45 SECO, Second stage cut off. Nominal orbit insertion.
12:00 Dragon capsule separation, at 200 km. Docking with the Harmony module of ISS tomorrow noon.



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

27.11.2022 13:38
#271 RE: LC-39A Antworten

Zitat
Spaceflight Now @SpaceflightNow
Mission control has given a "go" for docking of SpaceX's Dragon cargo ship to the International Space Station. Range is now less than 50 feet, or about 15 meters.
1:37 PM · Nov 27, 2022·TweetDeck


https://twitter.com/SpaceflightNow/statu...845634002247683

13:39 "Three meters and closing." ISS über dem Pazifik.
13:39 "One meter and closing."
13:40 "Soft capture complete."

Zitat
• Total Cargo: 7,777 pounds (3,528 kilograms)
2,636 pounds (1,196 kilograms) of unpressurized payloads (iROSA)
2,341 pounds (1,062 kilograms) of crew supplies
2,066 pounds (937 kilograms) of science investigations
653 pounds (296 kilograms) of vehicle hardware
55 pounds (25 kilograms) of spacewalk equipment
26 pounds (12 kilograms) of computer resources



https://spaceflightnow.com/2022/11/27/sp...26-iss-docking/

iROSA sind zwei aufgerollte Sonnenpaneele, mit 15,5 m & 5,5 m Breite.



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

30.11.2022 22:34
#272 RE: LC-39A Antworten

Starlink ist vor einer halben Stunde ausgefallen; anscheinend weltweit.

Zitat
📸Trevor Mahlmann@TrevorMahlmann
Starlink appears to be down, and been down for ~15 minutes now. From some quick searches, it appears to be a global outage
10:13 PM · Nov 30, 2022


https://twitter.com/TrevorMahlmann/statu...062565107507200

PS.

Zitat
Austin DeSisto@AustinDeSisto
Replying to @TrevorMahlmann
Back now, but I see that it was searching for a while
10:28 PM · Nov 30, 2022

Luke Wendt@astro_luke7399
Replying to @TrevorMahlmann
Can confirm. I had this for about ~20 minutes. Northern Wisconsin.
10:23 PM · Nov 30, 2022

Jared Wolny@JaredWolny
Replying to @TrevorMahlmann
Outage here in Colorado USA for 15-20 min now
10:20 PM · Nov 30, 2022



Zitat
Eric Berger@SciGuySpace
Based on a few friends who use the service, and #starlink, it looks like the service was down for ~30 minutes or so today but seems to be coming back online for users.
10:35 PM · Nov 30, 2022


https://twitter.com/SciGuySpace/status/1598068177522622483

Heute morgen gab es schon Meldungen über einen Ausfall des Systems in der Ukraine.



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

08.01.2023 19:48
#273 RE: LC-39A Antworten

Der 5. Start einer Falcon Heavy insgesamt; der erste von 5 geplanten für 2023.

Zitat
SpaceX is set to kick off a busy week of launch preparations at Kennedy Space Center for the first of five planned Falcon Heavy rocket missions this year, targeting a dusk departure no earlier than Thursday evening from Launch Complex 39A on a flight for the U.S. Space Force.

The mission for the Space Force, designated USSF-67, will deploy two military spacecraft into a high-altitude geosynchronous orbit more than 22,000 miles (nearly 36,000 kilometers) over the equator. It will be the fifth flight of a Falcon Heavy rocket, one of the most powerful launchers in the world, and the first of five Falcon Heavy missions on SpaceX’s schedule for 2023.

The launch is scheduled for no earlier than Thursday, during a launch period running from 5 p.m. to 10 p.m. EST (2200-0300 GMT on Thursday into Friday). The exact launch time will be revealed closer to the launch date, but liftoff is expected to occur around 6 p.m. EST, shortly after sunset on Florida’s Space Coast.
...
There are two more Falcon Heavy missions scheduled for launch in the spring. One will launch the first ViaSat 3 internet satellite to beam broadband service over the Americas for Viasat, and the other will launch the USSF-52 mission for the Space Force.

Later in the year, SpaceX plans to launch the Jupiter 3 satellite to provide internet services for EchoStar’s Hughes Network Systems. That launch is expected no earlier than May.

NASA’s robotic Psyche asteroid explorer is slated to depart Earth on a Falcon Heavy rocket during a launch period opening Oct. 10. The Psyche mission, delayed from 2022, will enter orbit around the metal-rich asteroid Psyche in 2029.

SpaceX has a backlog of 12 Falcon Heavy missions over the next few years, including the five launches planned in 2023.


https://spaceflightnow.com/2023/01/07/sp...ions-this-year/

Der erste chinesische Start einer Langer Marsch 7A für dieses Jahr ist für heute nacht von Wenchang aus geplant, Mission Shijian 23. Startfenster öffnet sich in exakt 4 Stunden.)
SpaceX hat für übermorgen den Start zweier F9 vom Cape & von Vandenberg aus auf dem Zeitplan.

Nachtrag: Apropos Wenchang - Livestream hier: https://live.bilibili.com/21694659

Es ist der 5. Start einer LM 7A; der Erststart war im März 2020. Sie kann 13,5 t in die niedrige Umlaufbahn befördern und 7 t in eine geostationäre; die Experten setzen eher darauf, daß es sich bei der Shijian-23-Mission um einen Kommunikationsatelliten handelt (die CNSA hat sich da bedeckt gehalten).



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

08.01.2023 23:54
#274 RE: LC-39A Antworten

Wenchang. Start offziell für 23:00 bestätigt.

Zitat
1月9日6时00分,长征七号A运载火箭在中国文昌航天发射场点火起飞,托举实践二十三号卫星直冲云霄,随后卫星进入预定轨道,发射取得圆满成功,中国航天实现2023年宇航发射“开门红”。

实践二十三号卫星由中国航天科技集团有限公司八院抓总研制,主要用于开展科学试验、技术验证等。


https://mp.weixin.qq.com/s/DWJjk0SgNCcHmNEM78jcjw



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

Ulrich Elkmann Offline




Beiträge: 12.248

09.01.2023 15:49
#275 RE: LC-39A Antworten

Ich gebe mal die Startliste für den Zeitraum von 30 Stunden.

8.1.
23:00 Shijian 23 - Wenchang, China, Hainan

9.1.
01:00 Ceres-1 - Jiuqian, China, Wüste Gobi
23:54 LauncherOne, "StartMeUp" - Cornwall / Biscaya

10.1.
00:00 Maiden Flight / RS 1 - Kodiak, Alaska
06:15 Starlink Group 2-4 / Falcon 9 - Vandenberg, Kalifornien
06:50 OneWeb 16 / Falcon 9 - Cape Canaveral, Florida



"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire

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