Exposure
- ID
- GRAVI.2024-02-29T08:41:57.919_1
- Header ID
- GRAVI.2024-02-29T08:41:57.919
- Date updated
- 2024-02-29 09:00:39 UTC+0000
- Release date
- 2025-02-28 09:00:39 UTC+0000
- UTC Start
- 2024-02-29 08:41:57.919
- UTC End
- 2024-02-29 08:48:37.919
- MJD Start
- 60369.36247592
- MJD End
- 60369.3671055496
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008498
- Ambient temperature (°C)
- 15.23
- Seeing (arcsec)
- 0.52
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 | 22.2210 | 22.3430 | 135.4000 | 136.6000 |
| A0-D0 | 31.4810 | 31.3970 | 73.2000 | 74.6000 |
| A0-C1 | 21.7730 | 21.8560 | 110.1880 | 111.6170 |
| B2-D0 | 28.8570 | 28.7220 | 30.2000 | 31.3000 |
| B2-C1 | 9.6110 | 9.5660 | 30.1990 | 31.2590 |
| D0-C1 | 19.2460 | 19.1560 | 210.2690 | 211.3300 |
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 | 60369.36247592 |
| 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 | 22.221 |
| HIERARCH ESO ISS PBL12 END | 22.343 |
| HIERARCH ESO ISS PBLA12 START | 135.4 |
| HIERARCH ESO ISS PBLA12 END | 136.6 |
| HIERARCH ESO ISS PBL13 START | 31.481 |
| HIERARCH ESO ISS PBL13 END | 31.397 |
| HIERARCH ESO ISS PBLA13 START | 73.2 |
| HIERARCH ESO ISS PBLA13 END | 74.6 |
| HIERARCH ESO ISS PBL14 START | 21.773 |
| HIERARCH ESO ISS PBL14 END | 21.856 |
| HIERARCH ESO ISS PBLA14 START | 110.188 |
| HIERARCH ESO ISS PBLA14 END | 111.617 |
| HIERARCH ESO ISS PBL23 START | 28.857 |
| HIERARCH ESO ISS PBL23 END | 28.722 |
| HIERARCH ESO ISS PBLA23 START | 30.2 |
| HIERARCH ESO ISS PBLA23 END | 31.3 |
| HIERARCH ESO ISS PBL24 START | 9.611 |
| HIERARCH ESO ISS PBL24 END | 9.566 |
| HIERARCH ESO ISS PBLA24 START | 30.199 |
| HIERARCH ESO ISS PBLA24 END | 31.259 |
| HIERARCH ESO ISS PBL34 START | 19.246 |
| HIERARCH ESO ISS PBL34 END | 19.156 |
| HIERARCH ESO ISS PBLA34 START | 210.269 |
| HIERARCH ESO ISS PBLA34 END | 211.33 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008684 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008312 |
| HIERARCH ESO ISS AMBI TEMP | 15.23 |
| HIERARCH ESO ISS AMBI FWHM START | 0.55 |
| HIERARCH ESO ISS AMBI FWHM END | 0.49 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA |
| HIERARCH ESO FT ROBJ ALPHA | 143923.850 |
| HIERARCH ESO FT ROBJ DELTA | -604954.839 |