Exposure
- ID
- GRAVI.2024-03-16T08:18:35.389_2
- Header ID
- GRAVI.2024-03-16T08:18:35.389
- Date updated
- 2024-03-16 08:35:32 UTC+0000
- Release date
- 2025-03-16 08:35:32 UTC+0000
- UTC Start
- 2024-03-16 08:18:35.389
- UTC End
- 2024-03-16 08:25:15.389
- MJD Start
- 60385.34624293
- MJD End
- 60385.3508725596
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004727
- Ambient temperature (°C)
- 16.78
- Seeing (arcsec)
- 0.7
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 | 88.7320 | 88.9540 | 118.4000 | 119.8000 |
| A0-J2 | 129.1260 | 129.0350 | 99.6000 | 101.1000 |
| A0-K0 | 123.5820 | 123.0840 | 81.6100 | 83.0900 |
| G1-J2 | 53.4190 | 53.0990 | 67.2000 | 68.6000 |
| G1-K0 | 74.6670 | 74.2140 | 36.2850 | 37.3300 |
| J2-K0 | 39.8290 | 39.8780 | 352.6950 | 353.6210 |
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 | 60385.34624293 |
| 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 | 88.732 |
| HIERARCH ESO ISS PBL12 END | 88.954 |
| HIERARCH ESO ISS PBLA12 START | 118.4 |
| HIERARCH ESO ISS PBLA12 END | 119.8 |
| HIERARCH ESO ISS PBL13 START | 129.126 |
| HIERARCH ESO ISS PBL13 END | 129.035 |
| HIERARCH ESO ISS PBLA13 START | 99.6 |
| HIERARCH ESO ISS PBLA13 END | 101.1 |
| HIERARCH ESO ISS PBL14 START | 123.582 |
| HIERARCH ESO ISS PBL14 END | 123.084 |
| HIERARCH ESO ISS PBLA14 START | 81.61 |
| HIERARCH ESO ISS PBLA14 END | 83.09 |
| HIERARCH ESO ISS PBL23 START | 53.419 |
| HIERARCH ESO ISS PBL23 END | 53.099 |
| HIERARCH ESO ISS PBLA23 START | 67.2 |
| HIERARCH ESO ISS PBLA23 END | 68.6 |
| HIERARCH ESO ISS PBL24 START | 74.667 |
| HIERARCH ESO ISS PBL24 END | 74.214 |
| HIERARCH ESO ISS PBLA24 START | 36.285 |
| HIERARCH ESO ISS PBLA24 END | 37.33 |
| HIERARCH ESO ISS PBL34 START | 39.829 |
| HIERARCH ESO ISS PBL34 END | 39.878 |
| HIERARCH ESO ISS PBLA34 START | 352.695 |
| HIERARCH ESO ISS PBLA34 END | 353.621 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00456 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004894 |
| HIERARCH ESO ISS AMBI TEMP | 16.78 |
| HIERARCH ESO ISS AMBI FWHM START | 0.7 |
| HIERARCH ESO ISS AMBI FWHM END | 0.7 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.968 |
| HIERARCH ESO FT ROBJ DELTA | -604946.670 |