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Philae Science team meeting Venezia, March 30, 31, April 1, 2009 Palazzo Cavalli Franchetti 1. Instrument status Final discussion and wrap-up.

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Presentation on theme: "Philae Science team meeting Venezia, March 30, 31, April 1, 2009 Palazzo Cavalli Franchetti 1. Instrument status Final discussion and wrap-up."— Presentation transcript:

1 Philae Science team meeting Venezia, March 30, 31, April 1, 2009 Palazzo Cavalli Franchetti 1. Instrument status Final discussion and wrap-up

2 Philae Science team meeting 1. Instrument status ● More than fair for all 10 investigations. Most science initial goals met. ● Unprecedented challenges (performance vs resources) overwent. ● All PCs were required to identify and fix issues. ● At P/L level, we are ready to operate at full capability and efficiency. ● Exemplary spirit of cooperation within the overall team. ● On behalf of all PI teams, utmost thanks to ESA, LCC and SONC.

3 Philae Science team meeting Venezia, March 30, 31, April 1, 2009 Palazzo Cavalli Franchetti 1. Instrument status 2. Upcoming activity: PC10 Final discussion and wrap-up

4 Philae Science team meeting 2. Upcoming activity: PC10 ● All requests from PI teams received and planned. ● If prioritization required, rationale could be: 1. COSAC (GC bypass to MS only) 2. MUPUS and SESAME: completion of calibration 3. all others, at equal level, with similar resource sharing

5 Philae Science team meeting Venezia, March 30, 31, April 1, 2009 Palazzo Cavalli Franchetti 1. Instrument status 2. Upcoming activity: PC10 3. Upcoming activity: ESB3 Final discussion and wrap-up

6 Philae Science team meeting 3. Upcoming activity: ESB3 ● All PI teams endorsed the proposal not to participate, to save resources (LCC/SONC) on more critical activity.

7 Philae Science team meeting Venezia, March 30, 31, April 1, 2009 Palazzo Cavalli Franchetti 1. Instrument status 2. Upcoming activity: PC10 3. Upcoming activity: ESB3 4. Upcoming activity: PC12 Final discussion and wrap-up

8 Philae Science team meeting 4. Upcoming activity: PC12 ● The focus is on CDMS SW 8.0 upload ● This SW should include all modes/sequences complying with SDL, FSS and LTS, as designed from present reference mission scenario. ● Major inputs from Project/PIs are due no later than April 30, 2009 ● The next SDL/LTS workshop meetings (April 27/28) critical. ● Herebelow are proposed some driving principles.

9 Suggested SDL principles Goal: simplify CDMS SW towards increased robustness 1. Automated emergency release if nominal release fails (time out) 2. Single descent sequence (no dependent on nominal/emergency) 3. Single TouchDown (TD) signal used (the less sensitive LG trigger) 4. Reception of TD signal disabled for a mission analysis driven duration 5. Anchoring sequence based on TD signal (no time out trigger) 6. FSS start triggered by TD signal or timeout (emergency release based) 7. ROLIS start at a mission analysis based time 8. ROLIS stop triggered by TC at a mission analysis based time

10 Suggested SDL principles Goal: simplify CDMS SW towards increased robustness 1. Automated emergency release if nominal release fails (time out) 2. Single descent sequence (no dependent on nominal/emergency) 3. Single TouchDown (TD) signal used (the less sensitive LG trigger) 4. Reception of TD signal disabled for a mission analysis driven duration 5. Anchoring sequence based on TD signal (no time out trigger) 6. FSS start triggered by TD signal or timeout (emergency release based) 7. ROLIS start at a mission analysis based time 8. ROLIS stop triggered by TC at a mission analysis based time

11 nominal releaseemergency release TD

12 Suggested SDL principles Goal: simplify CDMS SW towards increased robustness 1. Automated emergency release if nominal release fails (time out) 2. Single descent sequence (no dependent on nominal/emergency) 3. Single TouchDown (TD) signal used (the less sensitive LG trigger) 4. Reception of TD signal disabled for a mission analysis driven duration 5. Anchoring sequence based on TD signal (no time out trigger) 6. FSS start triggered by TD signal or timeout (emergency release based) 7. ROLIS start at a mission analysis based time 8. ROLIS stop triggered by TC at a mission analysis based time

13 TD signal reception disabled nominal releaseemergency release TD signal

14 Suggested SDL principles Goal: simplify CDMS SW towards increased robustness 1. Automated emergency release if nominal release fails (time out) 2. Single descent sequence (no dependent on nominal/emergency) 3. Single TouchDown (TD) signal used (the less sensitive LG trigger) 4. Reception of TD signal disabled for a mission analysis driven duration 5. Anchoring sequence based on TD signal (no time out trigger) 6. FSS start triggered by TD signal or timeout (emergency release based) 7. ROLIS start at a mission analysis based time 8. ROLIS stop triggered by TC at a mission analysis based time

15 Suggested SDL principles Goal: simplify CDMS SW towards increased robustness 1. Automated emergency release if nominal release fails (time out) 2. Single descent sequence (no dependent on nominal/emergency) 3. Single TouchDown (TD) signal used (the less sensitive LG trigger) 4. Reception of TD signal disabled for a mission analysis driven duration 5. Anchoring sequence based on TD signal (no time out trigger) assumption: if hard surface, TD signal generated, followed by anchoring if soft surface and TD not generated, anchoring not required

16 TD signal reception disabled nominal releaseemergency release TD signal anchoring after TD signal

17 Suggested SDL principles Goal: simplify CDMS SW towards increased robustness 1. Automated emergency release if nominal release fails (time out) 2. Single descent sequence (no dependent on nominal/emergency) 3. Single TouchDown (TD) signal used (the less sensitive LG trigger) 4. Reception of TD signal disabled for a mission analysis driven duration 5. Anchoring sequence based on TD signal (no time out trigger) 6. FSS start triggered by TD signal or timeout (emergency release based) 7. ROLIS start at a mission analysis based time 8. ROLIS stop triggered by TC at a mission analysis based time

18 FSS starts (from TD signal) TD signal reception disabled nominal releaseemergency release TD signal FSS starts (from TD signal)

19 FSS starts (from time out) TD signal reception disabled nominal releaseemergency release

20 Suggested SDL principles Goal: simplify CDMS SW towards increased robustness 1. Automated emergency release if nominal release fails (time out) 2. Single descent sequence (no dependent on nominal/emergency) 3. Single TouchDown (TD) signal used (the less sensitive LG trigger) 4. Reception of TD signal disabled for a mission analysis driven duration 5. Anchoring sequence based on TD signal (no time out trigger) 6. FSS start triggered by TD signal or timeout (emergency release based) 7. ROLIS start triggered by TC at a mission analysis based time 8. ROLIS stop triggered by TC at a mission analysis based time

21 ROLIS starts (from MA timing) ROLIS stops (from TC) TD signal reception disabled nominal releaseemergency release

22 Suggested SDL principles Goal: simplify CDMS SW towards increased robustness 1. Automated emergency release if nominal release fails (time out) 2. Single descent sequence (no dependent on nominal/emergency) 3. Single TouchDown (TD) signal used (the less sensitive LG trigger) 4. Reception of TD signal disabled for a mission analysis driven duration 5. Anchoring sequence based on TD signal (no time out trigger) 6. FSS start triggered by TD signal or timeout (emergency release based) 7. ROLIS start triggered by TC at a mission analysis based time 8. ROLIS stop triggered by TC at a mission analysis based time 9. P/L prioritization: two tests cases (A+B, A+B+C). Actual priority later on.

23 Suggested LTS principles Goal: enabling Philae survival post FSS to enter LTS ASAP 1. Load is on CDMS S/W (8.0): we must minimize it 2. End the FSS in an optimized Philae orientation. Goal: 3. Rotate after deep sample analyses, before PEN and APXS deployments 4. Power battery managing focused on survival (no science) 5. Priority: enable communicating with Philae (TC reception) 6. LTS first phase (pre-conjunction) key to monitor activity onset 7. Mean free path might lead to lethal dust coverage 8. Priority be made on MUPUS & SESAME (no sample connected activity) 9. Envision SD2/COSAC/PTOLEMY/CIVA-M post conjunction only 10. Imaging (CIVA) depending on resources & upload constraints

24 Philae Science team meeting Venezia, March 30, 31, April 1, 2009 Palazzo Cavalli Franchetti 1. Instrument status 2. Upcoming activity: PC10 3. Upcoming activity: ESB3 4. Upcoming activity: PC12 5. Upcoming activity: Lutetia Final discussion and wrap-up

25 Philae Science team meeting 5. Upcoming activity: Lutetia ● Envisioned activity similar to that of Steins ● PTOLEMY (and CIVA, if orientation OK) possibly added ● Study the outgassing while illuminated (ROMAP + ROSINA)

26 Philae Science team meeting Venezia, March 30, 31, April 1, 2009 Palazzo Cavalli Franchetti 1. Instrument status 2. Upcoming activity: PC10 3. Upcoming activity: ESB3 4. Upcoming activity: PC12 5. Upcoming activity: Lutetia 6. Next meetings: LOWG, 5thSWT Final discussion and wrap-up

27 Philae Science team meeting 6. Next meetings: LOWG, 5thSWT ● LOWG: prior to PC12 (January 2010 typically, TBC) ● 5th SWT: post PC12 (June typically, TBC), at PTOLEMY premises

28 Philae Science team meeting Venezia, March 30, 31, April 1, 2009 Palazzo Cavalli Franchetti 1. Instrument status 2. Upcoming activity: PC10 3. Upcoming activity: ESB3 4. Upcoming activity: PC12 5. Upcoming activity: Lutetia 6. Next meetings: LOWG, 5thSWT 7. Mille gracie, Amalia Final discussion and wrap-up

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