Exposure
- ID
- GRAVI.2024-03-05T06:38:28.463_2
- Header ID
- GRAVI.2024-03-05T06:38:28.463
- Date updated
- 2024-03-05 06:55:32 UTC+0000
- Release date
- 2025-03-05 06:55:32 UTC+0000
- UTC Start
- 2024-03-05 06:38:28.463
- UTC End
- 2024-03-05 06:44:28.463
- MJD Start
- 60374.27671832
- MJD End
- 60374.2808849867
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.014448
- Ambient temperature (°C)
- 16.7
- Seeing (arcsec)
- 0.43
Observation
- ID
- 58626
- Category
- science
- Program ID
- 112.25BY.003
- 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
- 43394
- Name
- AlphaCenB
- RA
- 219.8500375
- DEC
- -60.829605
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 | 79.8000 | 80.3600 | 88.2000 | 89.5000 |
| A0-J2 | 124.9670 | 125.3640 | 67.7000 | 69.2000 |
| A0-K0 | 127.9710 | 127.9810 | 50.8520 | 52.2270 |
| G1-J2 | 57.4050 | 57.3210 | 38.7000 | 40.0000 |
| G1-K0 | 80.6220 | 80.4850 | 13.9910 | 14.9850 |
| J2-K0 | 37.2300 | 37.4100 | 333.8750 | 334.6730 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 112.25BY.003 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60374.27671832 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | Star S5 |
| HIERARCH ESO INS SOBJ NAME | Star_S5 |
| RA | 219.845964 |
| DEC | -60.8303 |
| 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 | 377.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 79.8 |
| HIERARCH ESO ISS PBL12 END | 80.36 |
| HIERARCH ESO ISS PBLA12 START | 88.2 |
| HIERARCH ESO ISS PBLA12 END | 89.5 |
| HIERARCH ESO ISS PBL13 START | 124.967 |
| HIERARCH ESO ISS PBL13 END | 125.364 |
| HIERARCH ESO ISS PBLA13 START | 67.7 |
| HIERARCH ESO ISS PBLA13 END | 69.2 |
| HIERARCH ESO ISS PBL14 START | 127.971 |
| HIERARCH ESO ISS PBL14 END | 127.981 |
| HIERARCH ESO ISS PBLA14 START | 50.852 |
| HIERARCH ESO ISS PBLA14 END | 52.227 |
| HIERARCH ESO ISS PBL23 START | 57.405 |
| HIERARCH ESO ISS PBL23 END | 57.321 |
| HIERARCH ESO ISS PBLA23 START | 38.7 |
| HIERARCH ESO ISS PBLA23 END | 40.0 |
| HIERARCH ESO ISS PBL24 START | 80.622 |
| HIERARCH ESO ISS PBL24 END | 80.485 |
| HIERARCH ESO ISS PBLA24 START | 13.991 |
| HIERARCH ESO ISS PBLA24 END | 14.985 |
| HIERARCH ESO ISS PBL34 START | 37.23 |
| HIERARCH ESO ISS PBL34 END | 37.41 |
| HIERARCH ESO ISS PBLA34 START | 333.875 |
| HIERARCH ESO ISS PBLA34 END | 334.673 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.015211 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.013685 |
| HIERARCH ESO ISS AMBI TEMP | 16.7 |
| HIERARCH ESO ISS AMBI FWHM START | 0.34 |
| HIERARCH ESO ISS AMBI FWHM END | 0.52 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143924.009 |
| HIERARCH ESO FT ROBJ DELTA | -604946.578 |