Exposure
- ID
- GRAVI.2024-03-17T05:06:56.239_1
- Header ID
- GRAVI.2024-03-17T05:06:56.239
- Date updated
- 2024-03-17 05:25:40 UTC+0000
- Release date
- 2025-03-17 05:25:39 UTC+0000
- UTC Start
- 2024-03-17 05:06:56.239
- UTC End
- 2024-03-17 05:13:36.239
- MJD Start
- 60386.21315091
- MJD End
- 60386.2177805396
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0126155
- Ambient temperature (°C)
- 16.73
- Seeing (arcsec)
- 0.83
Observation
- ID
- 58776
- 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
- 43511
- Name
- StarS2
- RA
- 219.845615
- DEC
- -60.83177
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 75.4630 | 76.1740 | 78.0000 | 79.7000 |
| A0-J2 | 121.7820 | 122.3100 | 57.2000 | 58.9000 |
| A0-K0 | 127.5680 | 127.6620 | 40.9510 | 42.5100 |
| G1-J2 | 57.8410 | 57.7890 | 29.6000 | 31.0000 |
| G1-K0 | 81.3110 | 81.2350 | 6.9160 | 8.0190 |
| J2-K0 | 35.7610 | 36.0110 | 328.3150 | 329.1690 |
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 | 60386.21315091 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenA |
| HIERARCH ESO INS SOBJ NAME | StarS2 |
| RA | 219.845615 |
| DEC | -60.83177 |
| 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 | G1 |
| HIERARCH ESO ISS CONF STATION3 | J2 |
| HIERARCH ESO ISS CONF STATION4 | K0 |
| EXPTIME | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 75.463 |
| HIERARCH ESO ISS PBL12 END | 76.174 |
| HIERARCH ESO ISS PBLA12 START | 78.0 |
| HIERARCH ESO ISS PBLA12 END | 79.7 |
| HIERARCH ESO ISS PBL13 START | 121.782 |
| HIERARCH ESO ISS PBL13 END | 122.31 |
| HIERARCH ESO ISS PBLA13 START | 57.2 |
| HIERARCH ESO ISS PBLA13 END | 58.9 |
| HIERARCH ESO ISS PBL14 START | 127.568 |
| HIERARCH ESO ISS PBL14 END | 127.662 |
| HIERARCH ESO ISS PBLA14 START | 40.951 |
| HIERARCH ESO ISS PBLA14 END | 42.51 |
| HIERARCH ESO ISS PBL23 START | 57.841 |
| HIERARCH ESO ISS PBL23 END | 57.789 |
| HIERARCH ESO ISS PBLA23 START | 29.6 |
| HIERARCH ESO ISS PBLA23 END | 31.0 |
| HIERARCH ESO ISS PBL24 START | 81.311 |
| HIERARCH ESO ISS PBL24 END | 81.235 |
| HIERARCH ESO ISS PBLA24 START | 6.916 |
| HIERARCH ESO ISS PBLA24 END | 8.019 |
| HIERARCH ESO ISS PBL34 START | 35.761 |
| HIERARCH ESO ISS PBL34 END | 36.011 |
| HIERARCH ESO ISS PBLA34 START | 328.315 |
| HIERARCH ESO ISS PBLA34 END | 329.169 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.011119 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.014112 |
| HIERARCH ESO ISS AMBI TEMP | 16.73 |
| HIERARCH ESO ISS AMBI FWHM START | 0.86 |
| HIERARCH ESO ISS AMBI FWHM END | 0.8 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA |
| HIERARCH ESO FT ROBJ ALPHA | 143923.797 |
| HIERARCH ESO FT ROBJ DELTA | -604954.926 |