Exposure
- ID
- GRAVI.2024-03-05T08:50:29.914_1
- Header ID
- GRAVI.2024-03-05T08:50:29.914
- Date updated
- 2024-03-05 09:10:38 UTC+0000
- Release date
- 2025-03-05 09:10:37 UTC+0000
- UTC Start
- 2024-03-05 08:50:29.914
- UTC End
- 2024-03-05 08:57:09.914
- MJD Start
- 60374.36840178
- MJD End
- 60374.3730314096
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008744
- Ambient temperature (°C)
- 15.57
- Seeing (arcsec)
- 0.425
Observation
- ID
- 58628
- 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
- 43396
- Name
- StarS2
- RA
- 219.845694
- DEC
- -60.83176
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 88.3280 | 88.5790 | 116.0000 | 117.4000 |
| A0-J2 | 129.2160 | 129.1700 | 97.1000 | 98.6000 |
| A0-K0 | 124.3390 | 123.8890 | 79.1780 | 80.6520 |
| G1-J2 | 53.9180 | 53.6200 | 65.0000 | 66.3000 |
| G1-K0 | 75.3750 | 74.9510 | 34.5550 | 35.6050 |
| J2-K0 | 39.7330 | 39.7930 | 351.1690 | 352.0940 |
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 | 60374.36840178 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenA |
| HIERARCH ESO INS SOBJ NAME | StarS2 |
| RA | 219.845694 |
| DEC | -60.83176 |
| 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 | 88.328 |
| HIERARCH ESO ISS PBL12 END | 88.579 |
| HIERARCH ESO ISS PBLA12 START | 116.0 |
| HIERARCH ESO ISS PBLA12 END | 117.4 |
| HIERARCH ESO ISS PBL13 START | 129.216 |
| HIERARCH ESO ISS PBL13 END | 129.17 |
| HIERARCH ESO ISS PBLA13 START | 97.1 |
| HIERARCH ESO ISS PBLA13 END | 98.6 |
| HIERARCH ESO ISS PBL14 START | 124.339 |
| HIERARCH ESO ISS PBL14 END | 123.889 |
| HIERARCH ESO ISS PBLA14 START | 79.178 |
| HIERARCH ESO ISS PBLA14 END | 80.652 |
| HIERARCH ESO ISS PBL23 START | 53.918 |
| HIERARCH ESO ISS PBL23 END | 53.62 |
| HIERARCH ESO ISS PBLA23 START | 65.0 |
| HIERARCH ESO ISS PBLA23 END | 66.3 |
| HIERARCH ESO ISS PBL24 START | 75.375 |
| HIERARCH ESO ISS PBL24 END | 74.951 |
| HIERARCH ESO ISS PBLA24 START | 34.555 |
| HIERARCH ESO ISS PBLA24 END | 35.605 |
| HIERARCH ESO ISS PBL34 START | 39.733 |
| HIERARCH ESO ISS PBL34 END | 39.793 |
| HIERARCH ESO ISS PBLA34 START | 351.169 |
| HIERARCH ESO ISS PBLA34 END | 352.094 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008868 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00862 |
| HIERARCH ESO ISS AMBI TEMP | 15.57 |
| HIERARCH ESO ISS AMBI FWHM START | 0.39 |
| HIERARCH ESO ISS AMBI FWHM END | 0.46 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA |
| HIERARCH ESO FT ROBJ ALPHA | 143923.834 |
| HIERARCH ESO FT ROBJ DELTA | -604954.875 |