India’s Mangalyaan Mars Mission: Chronology of Events

India is the select few countries in the world to have successfully send its Mangalyaan spacecraft enter Mars orbit. India is also the fourth country in the world and first in India to achieve this achievement. India is also the first in the country to achieve this mission in a small budget of Rs 450 crore ($75 million) only.

Chronology of India’s Mangalyaan Mars Orbiter Mission
24-09-2014: Spacecraft successfully enters Martian orbit. Burn Start of main liquid engine confirmed. The radio link between the spacecraft and Earth is now blocked by Mars.

22-09-2014: Test Firing of Main Liquid Engine of Mars Orbiter Spacecraft is successful.

17-09-2014: Uploading of commands for Fourth Trajectory Correction Manoeuver and test-firing of Main Liquid Engine is in progress.

16-09-2014: Time-tagged commands to execute Mars Orbit Insertion (MOI) uploaded.

15-09-2014: Time-tagged commands to execute Mars Orbit Insertion (MOI) uploading and verification in progress.

12-06-2014: The second Trajectory Correction Manoeuvre (TCM-2) of India’s Mars Orbiter Spacecraft was successfully performed on June 11, 2014 at 1630 hrs IST. TCM-2 was performed by firing the spacecraft’s 22 Newton thrusters for a duration of 16 seconds.  At present, the radio distance between the spacecraft and the Earth is 102 million km. A radio signal from the Earth to the Spacecraft now takes about 340 seconds. The spacecraft so far has traveled a distance of 466 million km as part of its total journey of 680 million km. ISRO is continuously monitoring Mars Orbiter Spacecraft using Indian Deep Space Network (IDSN). The spacecraft and its five scientific instruments are in good health.

09-04-2014: Mars Orbiter Spacecraft crosses half way mark of its journey.

11-02-2014: Mangalyaan spends 100 Days in space

11-12-2013: The first Trajectory Correction Manoeuvre (TCM) of spacecraft was carried out successfully at 06:30 hrs (IST) by firing the 22 Newton Thrusters for a duration of 40.5 seconds. The spacecraft is travelling at a distance of about 29 lakh (2.9 million) km away from Earth.

04-12-2013: Spacecraft has traversed beyond the Sphere of Influence (SOI) of Earth extending about 925,000 km at around 1:14 hrs (IST) on Dec 4, 2013.

02-12-2013: Spacecraft has travelled a distance of 5,36,000 km by 17:00 hrs (IST) of Dec 2, 2013. It has crossed the distance to Moon’s orbit around Earth (mean distance 3,85,000 km) this morning.

01-12-2013: Medium Gain Antenna of the Mars Orbiter Spacecraft is powered for long distance communication, subsequent to successful Trans Mars Injection (TMI) manoeuvre. 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. Trans Mars Injection (TMI) operations in progress.

16-11-2013: The fifth orbit raising manoeuvre of Mars Orbiter Spacecraft, starting at 01:27 hrs (IST) on Nov 16, 2013, with a burn Time of 243.5 seconds has been successfully completed. The observed change in apogee is from 118,642 km to 192,874 km.

12-11-2013: Fourth supplementary orbit raising manoeuvre of Mars Orbiter Spacecraft, starting at 05:03:50 hrs(IST) on Nov 12, 2013, with a burn Time of 303.8 seconds has been successfully completed. The observed change in apogee is from 78,276 km to 118,642 km.

11-11-2013: In the fourth orbit-raising operation conducted this morning (Nov 11, 2013), the apogee (farthest point to Earth) of Mars Orbiter Spacecraft was raised from 71,623 km to 78,276 km by imparting an incremental velocity of 35 metres/second as against 130 metres/second originally planned to raise apogee to about 100,000 km.

09-11-2013: The third orbit raising manoeuvre of Mars Orbiter Spacecraft, starting at 02:10:43 hrs(IST) on Nov 09, 2013, with a burn time of 707 seconds has been successfully completed. The observed change in Apogee is from 40,186 km to 71,636 km.

08-11-2013: The second orbit raising manoeuvre of Mars Orbiter Spacecraft, starting at 02:18:51 hrs (IST) on Nov 08, 2013, with a burn time of 570.6 seconds has been successfully completed. The observed change in Apogee is from 28,814 km to 40,186 km.

07-11-2013: The first orbit raising manoeuvre of Mars Orbiter Spacecraft, starting at 01:17 hrs (IST) on Nov 07, 2013 has been successfully completed.

05-11-2013: PSLV-C25, in its twenty fifth flight, successfully launches Mars Orbiter Mission Spacecraft from SDSC SHAR Sriharikota, the first successful step of Mangalyaan.

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