Exposure
- ID
- GRAVI.2024-03-17T05:21:47.277_1
- Header ID
- GRAVI.2024-03-17T05:21:47.277
- Date updated
- 2024-03-17 05:35:39 UTC+0000
- Release date
- 2025-03-17 05:35:39 UTC+0000
- UTC Start
- 2024-03-17 05:21:47.277
- UTC End
- 2024-03-17 05:28:27.277
- MJD Start
- 60386.22346385
- MJD End
- 60386.2280934796
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0158645
- Ambient temperature (°C)
- 16.74
- Seeing (arcsec)
- 0.735
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 | 76.9780 | 77.6620 | 81.5000 | 83.1000 |
| A0-J2 | 122.9070 | 123.4120 | 60.8000 | 62.4000 |
| A0-K0 | 127.7590 | 127.8300 | 44.2940 | 45.8370 |
| G1-J2 | 57.7240 | 57.6600 | 32.7000 | 34.1000 |
| G1-K0 | 81.1340 | 81.0340 | 9.2870 | 10.3880 |
| J2-K0 | 36.2890 | 36.5220 | 330.1560 | 331.0180 |
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 | 60386.22346385 |
| 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 | 76.978 |
| HIERARCH ESO ISS PBL12 END | 77.662 |
| HIERARCH ESO ISS PBLA12 START | 81.5 |
| HIERARCH ESO ISS PBLA12 END | 83.1 |
| HIERARCH ESO ISS PBL13 START | 122.907 |
| HIERARCH ESO ISS PBL13 END | 123.412 |
| HIERARCH ESO ISS PBLA13 START | 60.8 |
| HIERARCH ESO ISS PBLA13 END | 62.4 |
| HIERARCH ESO ISS PBL14 START | 127.759 |
| HIERARCH ESO ISS PBL14 END | 127.83 |
| HIERARCH ESO ISS PBLA14 START | 44.294 |
| HIERARCH ESO ISS PBLA14 END | 45.837 |
| HIERARCH ESO ISS PBL23 START | 57.724 |
| HIERARCH ESO ISS PBL23 END | 57.66 |
| HIERARCH ESO ISS PBLA23 START | 32.7 |
| HIERARCH ESO ISS PBLA23 END | 34.1 |
| HIERARCH ESO ISS PBL24 START | 81.134 |
| HIERARCH ESO ISS PBL24 END | 81.034 |
| HIERARCH ESO ISS PBLA24 START | 9.287 |
| HIERARCH ESO ISS PBLA24 END | 10.388 |
| HIERARCH ESO ISS PBL34 START | 36.289 |
| HIERARCH ESO ISS PBL34 END | 36.522 |
| HIERARCH ESO ISS PBLA34 START | 330.156 |
| HIERARCH ESO ISS PBLA34 END | 331.018 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.016589 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.01514 |
| HIERARCH ESO ISS AMBI TEMP | 16.74 |
| HIERARCH ESO ISS AMBI FWHM START | 0.75 |
| HIERARCH ESO ISS AMBI FWHM END | 0.72 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA |
| HIERARCH ESO FT ROBJ ALPHA | 143923.797 |
| HIERARCH ESO FT ROBJ DELTA | -604954.926 |