Exposure
- ID
- GRAVI.2024-03-18T05:42:01.633_1
- Header ID
- GRAVI.2024-03-18T05:42:01.633
- Date updated
- 2024-03-18 06:00:37 UTC+0000
- Release date
- 2025-03-18 06:00:37 UTC+0000
- UTC Start
- 2024-03-18 05:42:01.633
- UTC End
- 2024-03-18 05:48:41.633
- MJD Start
- 60387.2375189
- MJD End
- 60387.2421485296
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0066775
- Ambient temperature (°C)
- 15.91
- Seeing (arcsec)
- 0.855
Observation
- ID
- 58792
- 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
- 43526
- Name
- StarS4
- RA
- 219.844272
- DEC
- -60.82911
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 79.3110 | 79.9410 | 87.0000 | 88.5000 |
| A0-J2 | 124.6150 | 125.0670 | 66.5000 | 68.1000 |
| A0-K0 | 127.9520 | 127.9750 | 49.6790 | 51.1980 |
| G1-J2 | 57.4720 | 57.3850 | 37.6000 | 39.0000 |
| G1-K0 | 80.7310 | 80.5890 | 13.1460 | 14.2420 |
| J2-K0 | 37.0700 | 37.2750 | 333.2010 | 334.0770 |
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 | 60387.2375189 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.844272 |
| DEC | -60.82911 |
| 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 | 79.311 |
| HIERARCH ESO ISS PBL12 END | 79.941 |
| HIERARCH ESO ISS PBLA12 START | 87.0 |
| HIERARCH ESO ISS PBLA12 END | 88.5 |
| HIERARCH ESO ISS PBL13 START | 124.615 |
| HIERARCH ESO ISS PBL13 END | 125.067 |
| HIERARCH ESO ISS PBLA13 START | 66.5 |
| HIERARCH ESO ISS PBLA13 END | 68.1 |
| HIERARCH ESO ISS PBL14 START | 127.952 |
| HIERARCH ESO ISS PBL14 END | 127.975 |
| HIERARCH ESO ISS PBLA14 START | 49.679 |
| HIERARCH ESO ISS PBLA14 END | 51.198 |
| HIERARCH ESO ISS PBL23 START | 57.472 |
| HIERARCH ESO ISS PBL23 END | 57.385 |
| HIERARCH ESO ISS PBLA23 START | 37.6 |
| HIERARCH ESO ISS PBLA23 END | 39.0 |
| HIERARCH ESO ISS PBL24 START | 80.731 |
| HIERARCH ESO ISS PBL24 END | 80.589 |
| HIERARCH ESO ISS PBLA24 START | 13.146 |
| HIERARCH ESO ISS PBLA24 END | 14.242 |
| HIERARCH ESO ISS PBL34 START | 37.07 |
| HIERARCH ESO ISS PBL34 END | 37.275 |
| HIERARCH ESO ISS PBLA34 START | 333.201 |
| HIERARCH ESO ISS PBLA34 END | 334.077 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007403 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005952 |
| HIERARCH ESO ISS AMBI TEMP | 15.91 |
| HIERARCH ESO ISS AMBI FWHM START | 0.73 |
| HIERARCH ESO ISS AMBI FWHM END | 0.98 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.934 |
| HIERARCH ESO FT ROBJ DELTA | -604946.699 |