The reverse countdown for landing of Chandrarayan 3 has been started as there are less than 24 hours of time left for processing the landing procedure.
The ISRO has posted about spacecraft that are running well and shared a picture clicked by a camera inserted in the spacecraft by tweeting below:
“The mission is on schedule. Systems are undergoing regular checks.Smooth sailing is continuing.The Mission Operations Complex (MOX) is buzzed with energy & excitement!The live telecast of the landing operations at MOX/ISTRAC begins at 17:20 Hrs. IST on August 23, 2023. Here are the images of the moon captured by the Lander Position Detection Camera (LPDC) from an altitude of about 70 km, on August 19, 2023.LPDC images assist the Lander Module in determining its position (latitude and longitude) by matching them against an onboard moon reference map.”
Changed Chandrayaan-3 Landing Date
The landing, if all goes well, will take place on August 23. In the event of any problems, the landing may be moved to August 27, 2023. A few hours prior to the landing, the mission’s controlling organization, ISRO, will decide whether everything is in order for the touchdown. This date change serves as a fallback in case something goes wrong.
Landing Details
Date: 23 Aug 2023
Time: from 1720 hrs
Place: Lunar south pole (4km x 2.4 km)
69.367621S, 32.348126E
Lander sensors
- Laser Inertial Referencing and Accelerometer Package (LIRAP)
- Ka-Band Altimeter (KaRA)
- Lander Position Detection Camera (LPDC)
- LHDAC (Lander Hazard Detection & Avoidance Camera)
- Laser Altimeter (LASA)
- Laser Doppler Velocimeter (LDV)
- Lander Horizontal Velocity Camera (LHVC)
- Micro Star sensorInclinometer & Touchdown sensors
Lander Actuators
Reaction wheels – 4 nos (10 Nms & 0.1 Nm)
Lander Propulsion System
Bi-Propellant Propulsion System (MMH + MON3), 4 nos. of 800 N Throttleable engines & 8 nos. of 58 N; Throttleable Engine Control Electronics.
Lander Mechanisms
- Lander leg
- Rover Ramp (Primary & Secondary)
- Rover
- ILSA, Rambha & Chaste Payloads
- Umbilical connector Protection Mechanism,
- X- Band Antenna
Lander Touchdown specifications
- Vertical velocity: ≤ 2 m / sec
- Horizontal velocity: ≤ 0.5 m / sec
- Slope: ≤ 12 deg
Also read:
Chandrayan-3 and Luna-25