|
| 1997-Feb-14 |
STIS installed on HST |
| 1997-Feb-21 |
Servicing Mission 2 programs started |
| 1997-Sep-25 |
Servicing Mission 2 programs finished |
| 1999-Mar-15 |
G140L and G140M moved from 3" above center to 3" below center
to avoid repeller wire (see the STIS Instrument Handbook, Section 7.5
MAMA Spectral Offsetting) shadow |
| 1999-Dec-14 |
On-the-fly-calibration (OTFC) enabled |
| 1999-Dec-27 |
Servicing Mission 3A programs started |
| 2000-Feb-06 |
Servicing Mission 3A programs finished |
| 2000-Jul-03 |
E1 pseudo-apertures (see the STIS Instrument Handbook,
Section 7.2.7 Mitigation...) implemented |
| 2001-May-01 |
On-the-fly-recalibration (OTFR) enabled |
| 2001-May-16 |
Side-1 electronics failed, operations suspended |
| 2001-Jul-10 |
Side-2 electronics enabled, operations resumed |
| 2002-Mar-12 |
Servicing Mission 3B programs started |
| 2002-May-05 |
Servicing Mission 3B programs finished |
| 2002-Sep-05 |
Time-dependent sensitivity correction implemented for MAMA data |
| 2002-Sep-05 |
Blaze shift correction for echelle data implemented |
| 2003-Aug-04 |
E2 and D1 pseudo-apertures implemented,
E1 pseudo-apertures revised (see Section 4.3.2) |
| 2003-Nov-13 |
Time-dependent sensitivity correction implemented for CCD data |
| 2003-Dec-16 |
Charge transfer inefficiency correction implemented for CCD data |
| 2004-Aug-03 |
Side-2 electronics failed, operations suspended |
| 2005-Dec-13 |
New combined grating/aperture correction implemented (see
Section 3.4.13) |
| 2006-Nov-03 |
Echelle data flux calibration significantly improved, trace rotation
implemented for commonly used first order modes |
| 2006-Nov-22 |
Full recalibration of archival STIS data started |
