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Table 12
Major changes in RGS hardware operations and their scientific impact.
| Orbit | Date | Event |
| yy-mm-dd | ||
|
|
||
| 24 | 00-01-25 | first light RGS2 |
| 26 | 00-01-30 | failure RGS2 CCD4 electronics |
| 19.9 <λ< 24.9 Å | ||
| 30 | 00-02-06 | first light RGS1 |
| 45 | 00-03-08 | upload DPP code (19) for improved onboard particle background data handling; data < orbit 45 have wrong exposure |
| 52 | 00-03-21 | update IC code (S206): no impact |
| 135 | 00-09-02 | failure of RGS1 CCD7 |
| (10.3 <λ< 13.6 Å), RGS operations suspended | ||
| 147 | 00-09-26 | operations resumed |
| 168 | 00-11-07 | modification of bias settings of RGS to reduce part stress |
| 171 | 00-11-13 | RGS set to setup mode during perigee |
| 192 | 00-12-25 | RGS2:CCD2 bias back to before orbit 168 |
| 361 | 01-11-29 | upload IC code (S207): no impact |
| 363 | 01-12-01 | upload IC code (S207): no impact |
| 532 | 02-11-04 | cooling RGS2 to − 115 °C |
| 537 | 02-11-13 | cooling RGS1 and RGS2 to − 110 °C |
| 538 | 02-11-15 | RGS2 CCD2: serial bias to − 2.7 V |
| 584 | 03-02-15 | CSG code (83): HTR 3 × 72 mode |
| 765 | 04-02-13 | 1st activation of current limiter RGS2 |
| 786 | 04-03-24 | 2 hot spots in RGS1:CCD1 |
| 905 | 04-11-18 | RGS1 upload IC code (S208): no impact |
| 907 | 04-11-22 | RGS2 upload IC code (S208): no impact |
| 1207 | 06-07-12 | lowering temperature electronics to limit impact of current limiter |
| 1389 | 07-07-11 | RGS1 CCD2: serial bias to − 4.8 V |
| 1408 | 07-08-16 | single node read-out RGS2 |
| 1671 | 09-01-24 | upload CSG code (95): small window mode became available to users after 10-10-8 |
Notes. At this moment, after 2009 no major changes have been necessary.
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