Hacker News new | ask | show | jobs
by bd 3523 days ago
It's starting to come (EDM is Schiaparelli lander, TGO is orbiter):

--------------------

Latest status for lander: still unknown (next checkpoint after 20:00 CEST)

Latest status for orbiter: seems good

--------------------

1) The @ESA_EDM landing recording from #MarsExpress has started arriving on Earth, #ESOC teams report seeing packets flowing #ExoMars

2) It will take just over 10 minutes for #MarsExpress to transmit the @ESA_EDM recording #ExoMars

3) Interpretation of the @ESA_EDM recording is quite complex - could take more than 30 minutes

4) @ESA_EDM recording from #MarsExpress is signal only, no telemetry. We can already tell a lot from that though.

5) #MarsExpress team now processing @ESA_EDM landing recording to extract the trace of the lander's signal as it descended to Mars.

6) #MarsExpress recording of @ESA_EDM descent is now processed and is being analysed by experts at #ESOC

7) ACQUISITION OF ORBITER SIGNAL! #ESOC hears @ESA_TGO's signal loud & clear after it emerges from behind #Mars

8) Initial reports from @ESA_TGO telemetry are that it performed exactly as expected during the #BigBurn

9) @ESA_TGO team are now analysing the health of the orbiter, looking good so far

10) Teams monitoring the Schiaparelli lander continue waiting for indication of the lander’s progress. Engineers are waiting for the next signal receipt slot, which will be provided by NASA’s Mars Reconnaissance Orbiter, which will overfly the Schiaparelli landing site between about 18:49 and 19:03 CEST, and downlink any received signals at around 20:00 CEST.

11) @ESA_EDM recording from #MarsExpress is inconclusive - not clear yet what the status of the lander is

--------------------

https://twitter.com/esaoperations/status/788770343888556033

https://twitter.com/esaoperations/status/788770921788178432

https://twitter.com/esaoperations/status/788771548517785600

https://twitter.com/esaoperations/status/788771906455470080

https://twitter.com/esaoperations/status/788775324389634048

https://twitter.com/esaoperations/status/788779693700968448

https://twitter.com/esaoperations/status/788780512089432064

https://twitter.com/esaoperations/status/788782643697577985

https://twitter.com/esaoperations/status/788783926173130752

http://www.esa.int/Our_Activities/Space_Science/ExoMars/Live...

https://twitter.com/esaoperations/status/788790526422188032

1 comments

Right, but we already know that the lander emitted some signals part way through the descent (directly transmitted to Earth 1 hours ago):

> #GMRT signal trace has jumped again, which should be the signature of @ESA_EDM parachute deployment #ExoMars

https://twitter.com/esaoperations/status/788755782665928704

> Further jumps in the signals from #GMRT - should show heatshield separation and powered descent #ExoMars

https://twitter.com/esaoperations/status/788755964786839552

So this doesn't tell us anything new. What's still to be seen is whether it survives the landing on the surface.

If the lander survived, it was expected to transmit. So far it seems that nothing like the expected transmission has been received.