Exposure
- ID
- GRAVI.2025-03-12T06:26:36.288_1
- Header ID
- GRAVI.2025-03-12T06:26:36.288
- Date updated
- 2025-03-12 06:45:54 UTC+0000
- Release date
- 2026-03-12 06:45:54 UTC+0000
- UTC Start
- 2025-03-12 06:26:36.288
- UTC End
- 2025-03-12 06:33:16.288
- MJD Start
- 60746.26847555
- MJD End
- 60746.27310517963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.011513
- Ambient temperature (°C)
- 14.37
- Seeing (arcsec)
- 0.45499999999999996
Observation
- ID
- 65030
- Category
- science
- Program ID
- 114.278L.001
- Program Title
- CONJUNCTIONS OF ALPHA CENTAURI: GRAVITY ASTROMETRY OF THE B-S4 EVENT AND CRIRES CHARACTERIZATION OF SOURCE S5
- Program Type
- Normal
- PI / COI
- KERVELLA / MÉRAND / LACOUR / FORVEILLE / ARENOU / THEVENIN / BOURDAROT / BRANDNER / STRAUBMEIER / GARCIA / WOILLEZ / EISENHAUER / PAUMARD / ROUSSELET-PERRAUT / PERRIN
Target
- ID
- 48420
- Name
- StarS4
- RA
- 219.843319
- DEC
- -60.82896
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B2 | 20.1720 | 20.3640 | 120.1000 | 121.3000 |
| A0-D0 | 32.0020 | 31.9950 | 54.1000 | 55.6000 |
| A0-C1 | 20.2680 | 20.4140 | 91.3830 | 92.8860 |
| B2-D0 | 30.1100 | 30.0430 | 16.3000 | 17.4000 |
| B2-C1 | 10.0280 | 10.0060 | 16.2780 | 17.3740 |
| D0-C1 | 20.0820 | 20.0380 | 196.3400 | 197.4370 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 114.278L.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60746.26847555 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.843319 |
| DEC | -60.82896 |
| 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 | B2 |
| HIERARCH ESO ISS CONF STATION3 | D0 |
| HIERARCH ESO ISS CONF STATION4 | C1 |
| EXPTIME | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 20.172 |
| HIERARCH ESO ISS PBL12 END | 20.364 |
| HIERARCH ESO ISS PBLA12 START | 120.1 |
| HIERARCH ESO ISS PBLA12 END | 121.3 |
| HIERARCH ESO ISS PBL13 START | 32.002 |
| HIERARCH ESO ISS PBL13 END | 31.995 |
| HIERARCH ESO ISS PBLA13 START | 54.1 |
| HIERARCH ESO ISS PBLA13 END | 55.6 |
| HIERARCH ESO ISS PBL14 START | 20.268 |
| HIERARCH ESO ISS PBL14 END | 20.414 |
| HIERARCH ESO ISS PBLA14 START | 91.383 |
| HIERARCH ESO ISS PBLA14 END | 92.886 |
| HIERARCH ESO ISS PBL23 START | 30.11 |
| HIERARCH ESO ISS PBL23 END | 30.043 |
| HIERARCH ESO ISS PBLA23 START | 16.3 |
| HIERARCH ESO ISS PBLA23 END | 17.4 |
| HIERARCH ESO ISS PBL24 START | 10.028 |
| HIERARCH ESO ISS PBL24 END | 10.006 |
| HIERARCH ESO ISS PBLA24 START | 16.278 |
| HIERARCH ESO ISS PBLA24 END | 17.374 |
| HIERARCH ESO ISS PBL34 START | 20.082 |
| HIERARCH ESO ISS PBL34 END | 20.038 |
| HIERARCH ESO ISS PBLA34 START | 196.34 |
| HIERARCH ESO ISS PBLA34 END | 197.437 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.013093 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009933 |
| HIERARCH ESO ISS AMBI TEMP | 14.37 |
| HIERARCH ESO ISS AMBI FWHM START | 0.41 |
| HIERARCH ESO ISS AMBI FWHM END | 0.5 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.496 |
| HIERARCH ESO FT ROBJ DELTA | -604945.609 |