Author Topic: ISRO Mars Orbiter Mission - Nov 2013 launch to September 2014 arrival - UPDATES  (Read 436355 times)

Offline plutogno

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there are also live updates on the mission page http://www.isro.org/mars/updates.aspx

Offline plutogno

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10 minutes of firing completed. Performance normal so far. Liquid engine continues to fire as planned.

Offline plutogno

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Just crossed the last perigee. Engine continues to fire as planned.

Offline AJA

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Whoa! I guess I was mistaken. "Eyes" is plotting an Earth escape trajectory. I just fast forwarded and checked.
EDIT: This may be the planned trajectory, as opposed to real-time telemetry.


Still very cool though :D


I'll get a grab of Mangalyaan at cut-off time shortly.
« Last Edit: 11/30/2013 06:40 PM by AJA »

Offline input~2

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2 more minutes to go!


Offline plutogno

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Tonight’s manoeuver has been completed, imparting the required incremental velocity of 648 m/s.

The orbit determination team will get us the orbit details soon.


Offline input~2

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ISRO updates
Quote
Trans Mars Injection (TMI) operations completed successfully

Offline input~2

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Liquid Engine propels MOM into Mars Transfer Trajectory and India into interplanetary space !
 
 Trans-Mars injection has been completed successfully.

Offline AJA

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The ISRO webpage first updated to


> Trans Mars Injection (TMI) operations completed


And then changed to


> Trans Mars Injection (TMI) operations completed successfully.


:D


Here are the Eyes screenshots. I took the one from the south pole to show the altitude.
« Last Edit: 11/30/2013 06:51 PM by AJA »

Offline ss1_3

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Bon Voyage MOM!!!

Liquid Engine propels MOM into Mars Transfer Trajectory and India into interplanetary space !

Offline input~2

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ISRO updates
Quote
Trans Mars Injection (TMI) operations completed successfully
Now replaced by
Quote
Trans Mars Injection (TMI) operations completed successfully. The liquid engine burn time was 1328.89 sec and the imparted incremental velocity was 647.96 m/sec.

Offline plutogno

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The liquid engine burn time was 1328.89 sec and the imparted incremental velocity was 647.96 m/sec.

target was 648 m/s. and the burn was predicted to last 1351s

Offline vyoma

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Liquid Engine propels MOM into Mars Transfer Trajectory and India into interplanetary space !

Trans-Mars injection has been completed successfully.

Relieved now! One of the longest 23 minutes I've experienced :) Congratulations to ISRO.
« Last Edit: 11/30/2013 07:00 PM by vyoma »

Offline vyoma

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The liquid engine burn time was 1328.89 sec and the imparted incremental velocity was 647.96 m/sec.

target was 648 m/s. and the burn was predicted to last 1351s

Looks like delta-v was achieved a bit sooner than they expected. If that's the case, then fuel consumption would be lesser than what they expected (198kg)?
« Last Edit: 11/30/2013 06:59 PM by vyoma »

Offline plutogno

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with today's burn India has already gone further than Russia had in the last 25 years...

Offline vyoma

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Here's a snap from Eyes; MOM and MAVEN heading towards Mars.
« Last Edit: 11/30/2013 07:12 PM by vyoma »

Offline AJA

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Looks like delta-v was achieved a bit sooner than they expected. If that's the case, then fuel consumption would be lesser than what they expected (198kg)?


They definitely burnt less fuel than planned. But was the delta-v precise enough in terms of DIRECTION as well? Or will the fuel saved now have to simply be burnt later due to that directional imprecision? Won't know until they tell us. We know the engine operated on closed loop control (one of the interviews with the chairman linked earlier on this thread1), so it would've cut off as soon as it saw that it'd gotten the required delta-v.


1. Anyway, the orbiter should've been picked up by the DSN station in Canberra by now. I've seen those images of the antennae and the S/C they're talking to (see the MAVEN launch thread). Anyone know if DSN has a live page? I found only this: http://www.cdscc.nasa.gov/Pages/trackingtoday.html


2. Another space-history question for the buffs: How many escape burns/orbit insertion manoeuvres have been conducted during spacecraft night-time?


--------


1Confusingly, the latest Hindu article seemed to mention that the controllers could've stepped to begin contingency procedures in if something went awry. How? What are these procedures?
« Last Edit: 11/30/2013 07:14 PM by AJA »

Offline input~2

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http://www.cdscc.nasa.gov/Pages/trackingtoday.html


DSN Tracking schedule:

Quote
DSS-45 (34-metre)
November 2013
Sat 30    MOM
December 2013
Sun 1     MOM
« Last Edit: 11/30/2013 07:26 PM by input~2 »

Offline plutogno

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2. Another space-history question for the buffs: How many escape burns/orbit insertion manoeuvres have been conducted during spacecraft night-time?

many Mars orbit injections have included periods in eclipse

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