Exposure
- ID
- GRAVI.2024-02-29T08:19:54.864_1
- Header ID
- GRAVI.2024-02-29T08:19:54.864
- Date updated
- 2024-02-29 08:35:59 UTC+0000
- Release date
- 2025-02-28 08:35:59 UTC+0000
- UTC Start
- 2024-02-29 08:19:54.864
- UTC End
- 2024-02-29 08:26:34.864
- MJD Start
- 60369.34716278
- MJD End
- 60369.3517924096
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0086455
- Ambient temperature (°C)
- 15.06
- Seeing (arcsec)
- 0.56
Observation
- ID
- 58573
- Category
- science
- Program ID
- 112.25BY.002
- Program Title
- GRAVITY ASTROMETRY OF STELLAR CONJUNCTIONS OF ALPHA CEN FOR STELLAR PHYSICS AND EXOPLANETS
- Program Type
- Normal
- PI / COI
- KERVELLA/ MÉRAND/ LACOUR/ FORVEILLE/ ARENOU/ THEVENIN/ BRANDNER/ STRAUBMEIER/ GARCIA/ WOILLEZ/ EISENHAUER/ PAUMARD/ ROUSSELET-PERRAUT/ PERRIN
Target
- ID
- 43367
- Name
- StarS2
- RA
- 219.845723
- DEC
- -60.83175
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B2 | 21.7970 | 21.9350 | 131.6000 | 132.8000 |
| A0-D0 | 31.7050 | 31.6420 | 68.5000 | 70.0000 |
| A0-C1 | 21.4780 | 21.5760 | 105.6150 | 107.0500 |
| B2-D0 | 29.2490 | 29.1320 | 26.8000 | 27.9000 |
| B2-C1 | 9.7410 | 9.7030 | 26.7970 | 27.8650 |
| D0-C1 | 19.5080 | 19.4300 | 206.8650 | 207.9340 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 112.25BY.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60369.34716278 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenA |
| HIERARCH ESO INS SOBJ NAME | StarS2 |
| RA | 219.845723 |
| DEC | -60.83175 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | SPLIT |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | A0 |
| HIERARCH ESO ISS CONF STATION2 | B2 |
| HIERARCH ESO ISS CONF STATION3 | D0 |
| HIERARCH ESO ISS CONF STATION4 | C1 |
| EXPTIME | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 21.797 |
| HIERARCH ESO ISS PBL12 END | 21.935 |
| HIERARCH ESO ISS PBLA12 START | 131.6 |
| HIERARCH ESO ISS PBLA12 END | 132.8 |
| HIERARCH ESO ISS PBL13 START | 31.705 |
| HIERARCH ESO ISS PBL13 END | 31.642 |
| HIERARCH ESO ISS PBLA13 START | 68.5 |
| HIERARCH ESO ISS PBLA13 END | 70.0 |
| HIERARCH ESO ISS PBL14 START | 21.478 |
| HIERARCH ESO ISS PBL14 END | 21.576 |
| HIERARCH ESO ISS PBLA14 START | 105.615 |
| HIERARCH ESO ISS PBLA14 END | 107.05 |
| HIERARCH ESO ISS PBL23 START | 29.249 |
| HIERARCH ESO ISS PBL23 END | 29.132 |
| HIERARCH ESO ISS PBLA23 START | 26.8 |
| HIERARCH ESO ISS PBLA23 END | 27.9 |
| HIERARCH ESO ISS PBL24 START | 9.741 |
| HIERARCH ESO ISS PBL24 END | 9.703 |
| HIERARCH ESO ISS PBLA24 START | 26.797 |
| HIERARCH ESO ISS PBLA24 END | 27.865 |
| HIERARCH ESO ISS PBL34 START | 19.508 |
| HIERARCH ESO ISS PBL34 END | 19.43 |
| HIERARCH ESO ISS PBLA34 START | 206.865 |
| HIERARCH ESO ISS PBLA34 END | 207.934 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007589 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009702 |
| HIERARCH ESO ISS AMBI TEMP | 15.06 |
| HIERARCH ESO ISS AMBI FWHM START | 0.61 |
| HIERARCH ESO ISS AMBI FWHM END | 0.51 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA |
| HIERARCH ESO FT ROBJ ALPHA | 143923.850 |
| HIERARCH ESO FT ROBJ DELTA | -604954.839 |