No. 149 - Preparations for first rendezvous manoeuvre
During the reporting period, mission operations were conducted using the ESA New Norcia (NNO) ground station and the DSS-15 (Goldstone, 34 metres), DSS-24 (Goldstone, 34 metres), DSS-25 (Goldstone, 34 metres), DSS-26 (Goldstone, 34 metres), DSS-43 (Canberra, 70 metres), DSS-55 (Madrid, 34 metres) and DSS-65 (Madrid, 34 metres) NASA Deep Space Network (DSN) antennas.
| Main activities during reporting period | |||
| DoY | Date | Pass | Activity |
| 352 | 18-Dec-2010 | DSS-65 2488 | Monitor |
| 353 | 19-Dec-2010 | DSS-25 2490 | Monitor |
| 354 | 20-Dec-2010 | NNO 2491 | Monitor |
| 355 | 21-Dec-2010 | NNO 2492 | Monitor |
| 356 | 22-Dec-2010 | NNO 2493 | Monitor |
| 357 | 23-Dec-2010 | DSS-65 2494 | Monitor |
| 361 | 27-Dec-2010 | NNO 2498 | Monitor |
| 362 | 28-Dec-2010 | DSS-26 2499 NNO 2499 |
Monitor |
| 363 | 29-Dec-2010 | DSS-26 2500 NNO 2500 |
Monitor |
| 364 | 30-Dec-2010 | NNO 2501 | Monitor |
| 001 | 1-Jan-2011 | DSS-43 2503 | Monitor |
| 003 | 3-Jan-2011 | NNO 2505 | Monitor |
| 004 | 4-Jan-2011 | DSS-26 2506 | Monitor |
| 005 | 5-Jan-2011 | DSS-15 2507 NNO 2507 |
Monitor |
| 006 | 6-Jan-2011 | NNO 2508 | Slew to first rendezvous manoeuvre attitude and spacecraft configuration |
| 008 | 8-Jan-2011 | DSS-26 2510 NNO 2510 |
Monitor |
| 010 | 10-Jan-2011 | DSS-55 2512 NNO 2512 |
Monitor |
| 011 | 11-Jan-2011 | DSS-26 2513 NNO 2513 |
Monitor |
| 012 | 12-Jan-2011 | DSS-24 2514 NNO 2514 |
Monitor |
| 013 | 13-Jan-2011 | DSS-25 2515 NNO 2515 |
Monitor |
| 014 | 14-Jan-2011 | DSS-26 2516 NNO 2516 |
Monitor |
| 015 | 15-Jan-2011 | DSS-55 2517 NNO 2517 |
Monitor |
| 016 | 16-Jan-2011 | DSS-24 2518 NNO 2518 |
Monitor |
|
DoY = Day of year | |||
At the end of the reporting period on 16 January, Rosetta was at 611 million km from Earth (4.08 AU); the one-way signal travel time was 33 min 58 sec (2038 sec). The spacecraft's distance from the Sun was 577 million km (3.86 AU).
Spacecraft
| Payload Status | |
| ALICE | The instrument is currently OFF. |
| CONSERT | The instrument is currently OFF. |
| COSIMA | The instrument is currently OFF. |
| GIADA | The instrument is currently OFF. |
| MIDAS | The instrument is currently OFF. |
| MIRO | The instrument is currently OFF. |
| OSIRIS | The instrument is currently OFF. |
| ROSINA | The instrument is currently OFF. |
| RPC | The instrument is currently OFF. |
| RSI | The USO is ON/muted since 3 February 2010 (DoY 032/2010). |
| VIRTIS | The instrument is currently OFF. |
| Lander (Philae) | The instrument is currently OFF. |
| SREM | The instrument is ON with standard settings since 3 February 2010 (DoY 032/2010). |
Future milestones
The spacecraft is now fully configured for the execution of the first rendezvous manoeuvre that is planned for the next reporting period. Due to its magnitude, this manoeuvre has been split into five nominal burns plus an optional extra one in the event that a final correction is needed. The detailed plan for the burns is given in the table below.| First Rendezvous Manoeuvre Burn Details | |||
| Burn | Date | ∆V[ms-1] | Duration [min] |
| 1A | 17-Jan-2011 | 300 | 393 |
| 1B | 18-Jan-2011 | 274 | 371 |
| 2A | 21-Jan-2011 | 120 | 171 |
| 2B | 23-Jan-2011 | 80 | 118 |
| TRIM1 | 10-Feb-2011 | 16 | 33 |
| TRIM2 | 3-Mar-2011 | 0 | 0 |
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Legal disclaimer
This report is based on the ESOC mission operations report, WOR #149. Please see the copyright section of the legal disclaimer (linked from the home page http://sci.esa.int) for terms of use.