Author Topic: ISRO Mars Orbiter Mission - Nov 2013 launch to September 2014 arrival - UPDATES  (Read 452945 times)

Offline antriksh

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Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Offline AJA

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UPDATE: Launch rehearsal that started at 6:08 IST today (0038 UTC) completed successfully.

Peanuts, anybody? :)

Is that you, or did JPL send that out to ISRO? Camaraderie win :)

Quick googling didn't give me anything... but I did find this summary of the various traditions written up for Curiosity's landing: http://zeenews.india.com/news/space/peanuts-eggs-and-pee-considered-good-luck-in-space-missions_793235.html
Quite a few things that I only learned today.

As far as ISRO traditions go.. I know that some Chairmen tend to visit the temples at Tirupati a few days before the launch. A standard good-luck / seeking-blessings puja for the vehicles/hardware (in addition to the Ramayana derived Ayudha Puja) is probably run of the mill too, and they've probably already crushed several lemons when they rolled the MLP/VAB (which pad is it launching from?). I'm envisioning a portly shaastri (priest) being taken up to the top of the mobile launch tower, to break a coconut, and sprinkle its water on; and apply vibhooti (sacred ash), and haldi (turmeric)-kumkum to the fairing. He'd probably feel denied too, a la Shepard - who wasn't allowed to 'kick the fins', when ISRO forbid him from tying the lemon-and-seven-chillies to any part of the vehicle and escort him off the pad :D (Note the contrast between Grissom's interpretation of tying a lemon to the Apollo 1 CM)

Anyone have any info regarding space-mission specific rituals?

ISRO will lose 'sight' of Mars Orbiter before ships pick up signals

These ships just continue to astound. I'm assuming tracking the spacecraft while moving rapidly is not feasible? Even so, if you knew you were going to have an LOS, wouldn't you prefer to have it AFTER S/C injection, as opposed to during a coast prior to ignition of the last stage of your rocket? i.e. move both ships by the requisite amount, to the west? Unless of course, there's little/no time margin between S/C sep and nominal LOS by the second ship. Is it a case of faster-reacquisition of a bigger (4th stage+S/C) target with an additional (4th stage's) transmitter? Or a case of slower error propagation due to slower velocity earlier in the ascent?

Offline ss1_3

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Peanuts, anybody? :)

Is that you, or did JPL send that out to ISRO? Camaraderie win :)



Taken from the Official FB page for MOM:

https://www.facebook.com/pages/ISROs-Mars-Orbiter-Mission/1384015488503058#

Offline antriksh

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Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Online jacqmans

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Oct 31, 2013

•Launch Rehearsal of PSLV-C25/Mars Orbiter Mission has been completed successfully in the afternoon on Oct 31, 2013.

•Launch Rehearsal of PSLV-C25/Mars Orbiter Mission commenced at 06:08 hrs (IST) on Oct 31, 2013 at First Launch Pad, SDSC SHAR.

•Vehicle systems powered and health is normal.

Online jacqmans

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Nov 01, 2013

•Launch Authorisation Board has approved & cleared the PSLV-C25/Mars Orbiter Mission launch on Nov 05, 2013 at 14:38 hrs (IST)

•56 and half hr countdown for launch will begin on Nov 03, 2013 at 06:08 hrs (IST)

Online jacqmans

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Offline antriksh

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PSLV-C25 Brochure
Nasadiya Sukta:
Srishti se pehle sat nahin thaa, asat bhi nahin | Antariksh bhi nahin, aakaash bhi nahin thaa | chhipaa thaa kyaa, kahaan, kisne dhakaa thaa | us pal to agam, atal jal bhi kahaan thaa ||

From: 1st verse of 129th Hymn of the 10th Book of Rig Veda

Online dsmillman

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The brochures are available at:

http://isro.org/pslv-c25/brochure.aspx


Online sanman

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Sorry to subject everyone to Mistahh Voiceovahh, but this is a fairly informative video:


Online sanman

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Pallav Bagla of NDTV gets some comments from NASA Chief Bolden:


Online sanman

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Online sanman

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MAVEN and MOM

http://www.universetoday.com/105772/maven-and-mom-missions-from-nasa-and-india-plan-martian-science-collaboration-in-orbit/

Hmm, I didn't realize MAVEN doesn't have a methane sensor.
I wonder what the opportunities are for collaboration between the 2 missions?

Offline AJA

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Hmm, I didn't realize MAVEN doesn't have a methane sensor.
I wonder what the opportunities are for collaboration between the 2 missions?

Aside from maybe studying relatively fast, dynamic phenomenon like dust-storms, and wind systems - targeted observation which makes use of the fact that there's going to be another set of eyes looking at the same place - I don't think much. The orbits are way different. Isn't MAVEN's apoapsis inside the Mars Orbiter's periapsis? That said, mass-spec observations at different altitudes at same, or shortly spaced time-periods may, again, offer the possibility of observing the evolution of some phenomenon.

But if they're indeed able to find an area where they can collaborate - then why should it be limited only to MAVEN? Imaging can supplement MRO, Mars Express and MODY too. Maybe even the rovers.
« Last Edit: 11/03/2013 03:54 PM by AJA »

Online sanman

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Yeah, too bad the PSLV doesn't have the oomph to get an orbiter to a more standard orbit around Mars. Would there be any possibility of trying an aerobraking maneuver to achieve this? Mars' atmosphere does extend to an exceptionally high altitude, so maybe such a move could be attempted once the main mission objectives have been fulfilled.

Hopefully this time the probe should have a fuller mission life, after learning lessons from Chandrayaan-1:


Online jacqmans

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Nov 02, 2013

•All the pre-countdown activities have been completed satisfactorily and the 56 and half hr countdown of Mission will commence tomorrow at 06:08 hrs (IST).

•Pre-count down activities of Mission commenced at 08:45 hrs.

Online jacqmans

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Nov 03, 2013


•Propellant filling of PS4 stage and RCT completed.


•Mixed Oxides of Nitrogen (MON) filling of PS4 completed at 17:00 hrs (IST).


•Mixed Oxides of Nitrogen (MON) filling of PS4 under progress.


•Mono Methyl Hydrazine (MMH) filling of Reaction Control Thrusters (RCT) completed.


•Mono Methyl Hydrazine (MMH) filling completed.


•Propellant filling operations of Fourth Stage (PS4) are in progress.


•The 56 hr 30 min countdown of Mission commenced at 06:08 hrs (IST).

Online sanman

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http://www.deccanherald.com/content/366871/mars-probe-study-comet-two.html

Quote
“The Mars Orbiter Mission (MOM) will fly by the comet C/2013A1 when the probe is near the Mars orbit. The comet contains good amount of methane, which we hope to observe using our methane sensor,” M Annadurai, programme director of Indian Space Research Organisation’s (Isro) Mars mission, told Deccan Herald.

So I guess the comet might allow some kind of calibration test for the methane sensor? But if the comet hits the Martian atmosphere, won't that then contaminate or skew any readings that are taken of the planet? On the other hand, I've read that methane breaks down fairly quickly in the Martian atmosphere due to radiation, so maybe the effects of the comet won't last too long.



Online Galactic Penguin SST

From the ISRO web page it seems that the liftoff time has slightly moved to 09:08 UTC.  :)
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

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