Following contribution to wikipedia was deleted from Wikipedia as "unencyclopedic":
Planned timeline
Mars time (GMT) , total elapsed time, time to landing, single phase time, description, Earth Received Time GMT:
· 14:42:18 00:00:00 00:05:53 00:00:00 Atmospheric Entry Starts (Altitude: 121km, Speed: 5.83km/s) 14:52:04
· 14:43:30 00:01:12 00:04:41 00:01:12 Peak Heating - 1750°C (Altitude: 45km, Speed: 5.3km/s) 14:53:16
· 14:45:39 00:03:21 00:02:32 00:02:09 Parachute Deployment (Altitude: 11km, Speed: 472m/s) 14:55:25
· 14:46:19 00:04:01 00:01:52 00:00:40 Heat Shield Jettison, Radar Activation (Altitude: 7km, Speed: 89m/s) 14:56:05
· 14:47:20 00:05:02 00:00:51 00:01:01 Descent Camera Starts Imaging (15 Images) 14:57:0x
· 14:47:40 00:05:22 00:00:31 00:00:20 Backshell Jettison (Altitude: 1.2km, Speed: 66.5m/s) 14:57:26
· 14:47:41 00:05:23 00:00:30 00:00:01 Landing Thruster Ignition (Altitude: 1.1km, Speed: 69.5m/s) 14:57:27
· 14:48:10 00:05:52 00:00:01 00:00:29 Landing Thruster Cutoff (Altitude: 2m, Speed: 1.1m/s) 14:57:56
· 14:48:11 00:05:53 00:00:00 00:00:01 Touchdown 14:57:57
EDL events sequence
The Schiaparelli lander separated from the TGO orbiter on 16 October 2016, three days before arrival at Mars, and entered the atmosphere at 21,000 km/h (13,000 mph; 5.8 km/s).[15] After slowing its initial entry through the atmosphere, the module was to deploy a parachute and complete its landing by using a closed-loop guidance, navigation and control system based on a Doppler radar altimeter sensor, and on-boardinertial measurement units. Throughout the descent, various sensors were to record a number of atmospheric parameters and lander performance.[22] The final stages of the landing were to be performed using pulse-firing liquid-fuel engines or retrorockets. About two metres above ground, the engines were designed to turn off and let the platform land on a crushable structure, designed to deform and absorb the final touchdown impact.[2][22]
The landing was planned to take place on Meridiani Planum[2] during the dust storm season, which would provide a chance to characterise a dust-loaded atmosphere during entry and descent, and to conduct surface measurements associated with a dust-rich environment.[23] If successful, once on the surface, it was to measure the wind speed and direction, humidity, pressure and surface temperature, and determine the transparency of the atmosphere.[23] It was also designed to make the first measurements of electrical fields at the planet's surface. A descent camera was included in the payload.
The Opportunity rover was operating in the region and the two teams worked together to see if the rover could image the lander during its descent.[24][25]
Live recording twitter report
During EDL, the ground-based Giant Metrewave Radio Telescope (GMRT) located near Pune, in India, experimentally attempted receiving the lander weak signal, actually designed to be received by TGO and other Mars orbiters. Experiment was successfull and the EDM carrier was detected for the first part of EDL; detection was reported through real time "tweets" on Twitter account officially managed by ESA (@esaoperations):
1. 14:45 - .@ESA_EDM signal disappeared as expected while it screamed through the top parts of Mars' atmosphere #ExoMars - source
2. 14:45 - SIGNAL DETECTION!! #GMRT detects @ESA_EDM signal after plasma blackout, final moments of descent coming #ExoMars - source
3. 14:46 - #GMRT signal trace has jumped again, which should be the signature of @ESA_EDM parachute deployment #ExoMars - source
4. 14:47 - Further jumps in the signals from #GMRT - should show heatshield separation and powered descent #ExoMars - source
5. 14:48 - #GMRT signal increase indicated @ESA_EDM is now on its main antenna, flying free from the parachute #ExoMars - source
6. 15:01 - Still waiting for signal of @ESA_EDM touchdown from #GMRT #ExoMars - source
(GMT time, spacecraft time, twitter timestamps)
Signal was lost before detecting the final rest of EDM on Mars surface.
Single events extrapolated from above report, without comments and interpretations:
1. 14:45 - .@ESA_EDM signal disappeared
2. 14:45 - SIGNAL DETECTION!!
3. 14:46 - #GMRT signal trace has jumped again
4. 14:47 - Further jumps in the signals from #GMRT
5. 14:48 - #GMRT signal increase
6. 15:01 - Signal lost.
1. Radio carrier coming from EDM was expected to disappear during high temperature phase of atmosphere entry; line (1) shows this disappearing;
2. Once the spacecraft cooled down (its external temperature reached over 1000°C temperature), its carrier was expexted to be received again from Earth; line (2) confirms signal re-acquisition;
3. GMRT (and also orbiter Mars Express) was also performing doppler analysis on the carrier, to detect decelerations in the spacecraft caused by passing from one phase to another: the EDM decelerated from ~20000 to ~2000 km/h while passing from outside to inside atmosphere, from ~2000 to ~200 km/h after parachute opening and from ~200 to ~4 km/h after retro-rocket firing (see planned timeline above); line (3) appears to confirm parachute deployment;
4. After decelerating down to ~200 km/h, EDM was planned to release parachute and rear cover, thus uncovering the antenna; this would have caused the carrier strength to reach Earth with more power; this appears to be detected in line (4) and (5).
5. Final stop of lander on surface was never detected due to loss of signal. (line 6).
Loss of the lander
The Schiaparelli lander attempted an automated landing on 19 October 2016, but the signal was lost unexpectedly a short time before the planned time of the landing.[5][26] ESA's Mars Express and NASA's Mars Reconnaissance Orbiter (MRO) and MAVEN listened for the lander's signal.[5] Initial analysis of returned telemetry (600 megabytes of data[27]) suggests that the heat shield and parachute deployment worked as expected, but the parachute was released too soon. In addition, the subsequent rocket thrusters' firing lasted about 3 seconds instead of the expected 30 seconds, so a soft landing appears not to have occurred.[28][29] The Context Camera of NASA's MRO discovered new ground markings that may be related to the lander's impact and parachute.[30]