Zitat ISRO@isro Chandrayaan-3 Mission: 🇮🇳Vikram soft-landed on 🌖, again! Vikram Lander exceeded its mission objectives. It successfully underwent a hop experiment. On command, it fired the engines, elevated itself by about 40 cm as expected and landed safely at a distance of 30 – 40 cm away. Importance?: This 'kick-start' enthuses future sample return and human missions! All systems performed nominally and are healthy. Deployed Ramp, ChaSTE and ILSA were folded back and redeployed successfully after the experiment.
Zitat ISRO@isro Chandrayaan-3 Mission: Vikram Lander is set into sleep mode around 08:00 Hrs. IST today.
Prior to that, in-situ experiments by ChaSTE, RAMBHA-LP and ILSA payloads are performed at the new location. The data collected is received at the Earth. Payloads are now switched off. Lander receivers are kept ON.
Vikram will fall asleep next to Pragyan once the solar power is depleted and the battery is drained. Hoping for their awakening, around September 22, 2023.
Here are the images before and after the hop. 10:47 AM · Sep 4, 2023
Auf dem Mond stehen ein silbernes Schiff und ein silberner Wagen mit vier Rädern. Und in dem Wagen sitzen drei Männer mit silbernen Gewändern, die schlafen seit tausend Jahren. Das sind die Männer im Mond. Und wenn sie eines Tages erwachen, dann fahren sie zu dem silbernen Schiff und fliegen mit ihm zur Erde. Dort werden sie in das tiefe Meer tauchen und abermals tausend Jahre schlafen.
- "Sagen und Märchen, wie der Volksmund sie erzählt"
Georg Zauner, Die Enkel der Raketenbauer. Berichte und Briefe aus dem dritten Jahrtausend (2750-2800 n.Chr.) Heyne SF 3751, München 1980, S. 133.
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
Zitat ISRO@isro Aditya-L1 Mission: The second Earth-bound maneuvre (EBN#2) is performed successfully from ISTRAC, Bengaluru. ISTRAC/ISRO's ground stations at Mauritius, Bengaluru and Port Blair tracked the satellite during this operation. The new orbit attained is 282 km x 40225 km. The next maneuvre (EBN#3) is scheduled for September 10, 2023, around 02:30 Hrs. IST 11:30 PM · Sep 4, 2023
Zitat ISRO @isro Aditya-L1 Mission: The third Earth-bound maneuvre (EBN#3) is performed successfully from ISTRAC, Bengaluru. ISRO's ground stations at Mauritius, Bengaluru, SDSC-SHAR and Port Blair tracked the satellite during this operation. The new orbit attained is 296 km x 71767 km. The next maneuvre (EBN#4) is scheduled for September 15, 2023, around 02:00 Hrs. IST 11:04 PM · Sep 9, 2023
Zitat ISRO@isro Aditya-L1 Mission: The fourth Earth-bound maneuvre (EBN#4) is performed successfully. ISRO's ground stations at Mauritius, Bengaluru, SDSC-SHAR and Port Blair tracked the satellite during this operation, while a transportable terminal currently stationed in the Fiji islands for Aditya-L1 will support post-burn operations. The new orbit attained is 256 km x 121973 km. The next maneuvre Trans-Lagragean Point 1 Insertion (TL1I) -- a send-off from the Earth -- is scheduled for September 19, 2023, around 02:00 Hrs. IST 10:59 PM · Sep 14, 2023
Zitat ISRO@isro Aditya-L1 Mission: Aditya-L1 has commenced collecting scientific data.
The sensors of the STEPS instrument have begun measuring supra-thermal and energetic ions and electrons at distances greater than 50,000 km from Earth.
This data helps scientists analyze the behaviour of particles surrounding Earth.
The figure displays variations in the energetic particle environment, collected by one of the units. 8:24 AM · Sep 18, 2023
The Supra Thermal & Energetic Particle Spectrometer (STEPS) instrument, a part of the Aditya Solar Wind Particle EXperiment (ASPEX) payload, has begun the collection of scientific data.
STEPS comprises six sensors, each observing in different directions and measuring supra-thermal and energetic ions ranging from 20 keV/nucleon to 5 MeV/nucleon, in addition to electrons exceeding 1 MeV. These measurements are conducted using low and high-energy particle spectrometers. The data collected during Earth’s orbits helps scientists to analyse the behaviour of particles surrounding the Earth, especially in the presence of the magnetic field of Earth.
STEPS was activated on September 10, 2023, at a distance greater than 50,000 km from Earth. This distance is equivalent to more than 8 times the Earth's radius, placing it well beyond Earth's radiation belt region. After completing the necessary instrument health checks, data collection continued until the spacecraft had moved farther than 50,000 km from Earth.
Each unit of STEPS is operating within normal parameters. A figure displays measurements depicting variations in the energetic particle environment within Earth's magnetosphere, collected by one of the units. These STEPS measurements will persist during the cruise phase of the Aditya-L1 mission as it progresses toward the Sun-Earth L1 point. They will continue once the spacecraft is positioned in its intended orbit. Data collected around L1 would provide insights into the origin, acceleration, and anisotropy of solar wind and space weather phenomena.
Zitat ISRO@isro Aditya-L1 Mission: Off to Sun-Earth L1 point!
The Trans-Lagrangean Point 1 Insertion (TL1I) maneuvre is performed successfully. The spacecraft is now on a trajectory that will take it to the Sun-Earth L1 point. It will be injected into an orbit around L1 through a maneuver after about 110 days. This is the fifth consecutive time ISRO has successfully transferred an object on a trajectory toward another celestial body or location in space. 11:00 PM · Sep 18, 2023
Zitat ISRO@isro Chandrayaan-3 Mission: Efforts have been made to establish communication with the Vikram lander and Pragyan rover to ascertain their wake-up condition. As of now, no signals have been received from them. Efforts to establish contact will continue. 3:18 PM · Sep 22, 2023
Heute um 31:31 (MESZ) ist übrigens zunehmender Halbmond; h.d. der Terminator verläuft genau in der Mitte der Mondscheibe. Der Shiva Phakti-Point liegt auf 32,2° östlicher Länge.
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
Zitat India’s moon lander, Chandrayaan-3, fails to answer wake-up call, may be dead for good By Editor, September 26, 2023
The Indian Space Research Organization (ISRO) is facing a critical situation as its Chandrayaan-3 lunar lander and Pragyan rover have failed to respond to wake-up calls.
The mission’s Vikram lander and Pragyan rover entered hibernation in early September due to the two-week-long frosty lunar night. Despite multiple attempts to re-establish communication, ISRO engineers have not received any signals from the spacecraft, raising concerns that they may be lost for good.
ISRO officials have stated that the chances of re-establishing contact with the lander and rover are “dimming with each passing hour.” While efforts to re-establish communication will continue, the mission faces an uncertain future. The inability to wake the spacecraft from their hibernation could mean the end of a pioneering venture that had initially shown great promise.
Wie in meinem Beitrag ausgeführt, ist das genau das, was erwartet worden war, weil weder der Lander noch der Rover Heizelemente an Bord haben, um die Kälte der Mondnacht zu überstehen.
"Les hommes seront toujours fous; et ceux qui croient les guérir sont les plus fous de la bande." - Voltaire
Zitat ISRO@isro Aditya-L1 Mission: 🔸The spacecraft has travelled beyond a distance of 9.2 lakh kilometres from Earth, successfully escaping the sphere of Earth's influence. It is now navigating its path towards the Sun-Earth Lagrange Point 1 (L1). 🔸This is the second time in succession that ISRO could send a spacecraft outside the sphere of influence of the Earth, the first time being the Mars Orbiter Mission. 3:21 PM · Sep 30, 2023
Zitat ISRO@isro Aditya-L1 Mission: The Spacecraft is healthy and on its way to Sun-Earth L1.
A Trajectory Correction Maneuvre (TCM), originally provisioned, was performed on October 6, 2023, for about 16 s. It was needed to correct the trajectory evaluated after tracking the Trans-Lagrangean Point 1 Insertion (TL1I) maneuvre performed on September 19, 2023.
TCM ensures that the spacecraft is on its intended path towards the Halo orbit insertion around L1.
As Aditya-L1 continues to move ahead, the magnetometer will be turned on again within a few days. 7:20 AM · Oct 8, 2023
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