Exposure
- ID
- GRAVI.2024-03-16T07:56:32.333_2
- Header ID
- GRAVI.2024-03-16T07:56:32.333
- Date updated
- 2024-03-16 08:15:44 UTC+0000
- Release date
- 2025-03-16 08:15:44 UTC+0000
- UTC Start
- 2024-03-16 07:56:32.333
- UTC End
- 2024-03-16 08:03:12.333
- MJD Start
- 60385.33092978
- MJD End
- 60385.3355594096
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005259
- Ambient temperature (°C)
- 16.64
- Seeing (arcsec)
- 1.005
Observation
- ID
- 58766
- 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
- 43502
- Name
- AlphaCenB
- RA
- 219.849866666667
- DEC
- -60.8296305555556
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- A0 G1 J2 K0
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 87.9030 | 88.1820 | 113.8000 | 115.2000 |
| A0-J2 | 129.2340 | 129.2300 | 94.7000 | 96.2000 |
| A0-K0 | 124.9820 | 124.5750 | 76.8990 | 78.3690 |
| G1-J2 | 54.3560 | 54.0770 | 62.8000 | 64.2000 |
| G1-K0 | 76.0020 | 75.6020 | 32.9220 | 33.9760 |
| J2-K0 | 39.6280 | 39.6980 | 349.7380 | 350.6610 |
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 | 60385.33092978 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS3 |
| RA | 219.845939 |
| DEC | -60.82955 |
| 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 | 87.903 |
| HIERARCH ESO ISS PBL12 END | 88.182 |
| HIERARCH ESO ISS PBLA12 START | 113.8 |
| HIERARCH ESO ISS PBLA12 END | 115.2 |
| HIERARCH ESO ISS PBL13 START | 129.234 |
| HIERARCH ESO ISS PBL13 END | 129.23 |
| HIERARCH ESO ISS PBLA13 START | 94.7 |
| HIERARCH ESO ISS PBLA13 END | 96.2 |
| HIERARCH ESO ISS PBL14 START | 124.982 |
| HIERARCH ESO ISS PBL14 END | 124.575 |
| HIERARCH ESO ISS PBLA14 START | 76.899 |
| HIERARCH ESO ISS PBLA14 END | 78.369 |
| HIERARCH ESO ISS PBL23 START | 54.356 |
| HIERARCH ESO ISS PBL23 END | 54.077 |
| HIERARCH ESO ISS PBLA23 START | 62.8 |
| HIERARCH ESO ISS PBLA23 END | 64.2 |
| HIERARCH ESO ISS PBL24 START | 76.002 |
| HIERARCH ESO ISS PBL24 END | 75.602 |
| HIERARCH ESO ISS PBLA24 START | 32.922 |
| HIERARCH ESO ISS PBLA24 END | 33.976 |
| HIERARCH ESO ISS PBL34 START | 39.628 |
| HIERARCH ESO ISS PBL34 END | 39.698 |
| HIERARCH ESO ISS PBLA34 START | 349.738 |
| HIERARCH ESO ISS PBLA34 END | 350.661 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004644 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005874 |
| HIERARCH ESO ISS AMBI TEMP | 16.64 |
| HIERARCH ESO ISS AMBI FWHM START | 1.04 |
| HIERARCH ESO ISS AMBI FWHM END | 0.97 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.968 |
| HIERARCH ESO FT ROBJ DELTA | -604946.670 |