Exposure
- ID
- GRAVI.2024-03-16T07:00:20.190_1
- Header ID
- GRAVI.2024-03-16T07:00:20.190
- Date updated
- 2024-03-16 07:15:28 UTC+0000
- Release date
- 2025-03-16 07:15:27 UTC+0000
- UTC Start
- 2024-03-16 07:00:20.190
- UTC End
- 2024-03-16 07:07:00.190
- MJD Start
- 60385.29190035
- MJD End
- 60385.2965299796
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004396
- Ambient temperature (°C)
- 16.69
- Seeing (arcsec)
- 0.695
Observation
- ID
- 58758
- 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
- 43494
- Name
- StarS2
- RA
- 219.845657
- DEC
- -60.83176
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 84.8980 | 85.3380 | 102.1000 | 103.6000 |
| A0-J2 | 128.2370 | 128.4570 | 82.4000 | 83.9000 |
| A0-K0 | 127.2870 | 127.0970 | 64.9400 | 66.4120 |
| G1-J2 | 56.1740 | 55.9920 | 51.7000 | 53.1000 |
| G1-K0 | 78.6790 | 78.4030 | 24.2420 | 25.3170 |
| J2-K0 | 38.7950 | 38.9230 | 342.2890 | 343.1960 |
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 | 60385.29190035 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenA |
| HIERARCH ESO INS SOBJ NAME | StarS2 |
| RA | 219.845657 |
| 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 | 84.898 |
| HIERARCH ESO ISS PBL12 END | 85.338 |
| HIERARCH ESO ISS PBLA12 START | 102.1 |
| HIERARCH ESO ISS PBLA12 END | 103.6 |
| HIERARCH ESO ISS PBL13 START | 128.237 |
| HIERARCH ESO ISS PBL13 END | 128.457 |
| HIERARCH ESO ISS PBLA13 START | 82.4 |
| HIERARCH ESO ISS PBLA13 END | 83.9 |
| HIERARCH ESO ISS PBL14 START | 127.287 |
| HIERARCH ESO ISS PBL14 END | 127.097 |
| HIERARCH ESO ISS PBLA14 START | 64.94 |
| HIERARCH ESO ISS PBLA14 END | 66.412 |
| HIERARCH ESO ISS PBL23 START | 56.174 |
| HIERARCH ESO ISS PBL23 END | 55.992 |
| HIERARCH ESO ISS PBLA23 START | 51.7 |
| HIERARCH ESO ISS PBLA23 END | 53.1 |
| HIERARCH ESO ISS PBL24 START | 78.679 |
| HIERARCH ESO ISS PBL24 END | 78.403 |
| HIERARCH ESO ISS PBLA24 START | 24.242 |
| HIERARCH ESO ISS PBLA24 END | 25.317 |
| HIERARCH ESO ISS PBL34 START | 38.795 |
| HIERARCH ESO ISS PBL34 END | 38.923 |
| HIERARCH ESO ISS PBLA34 START | 342.289 |
| HIERARCH ESO ISS PBLA34 END | 343.196 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00405 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004742 |
| HIERARCH ESO ISS AMBI TEMP | 16.69 |
| HIERARCH ESO ISS AMBI FWHM START | 0.73 |
| HIERARCH ESO ISS AMBI FWHM END | 0.66 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA |
| HIERARCH ESO FT ROBJ ALPHA | 143923.816 |
| HIERARCH ESO FT ROBJ DELTA | -604954.904 |