Exposure
- ID
- GRAVI.2025-03-20T07:52:57.070_1
- Header ID
- GRAVI.2025-03-20T07:52:57.070
- Date updated
- 2025-03-20 08:10:45 UTC+0000
- Release date
- 2026-03-20 08:10:45 UTC+0000
- UTC Start
- 2025-03-20 07:52:57.070
- UTC End
- 2025-03-20 07:59:37.070
- MJD Start
- 60754.32843831
- MJD End
- 60754.33306793963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0050355
- Ambient temperature (°C)
- 14.5
- Seeing (arcsec)
- 0.73
Observation
- ID
- 65719
- 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
- 48892
- Name
- StarS4
- RA
- 219.843282
- DEC
- -60.82896
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 88.3440 | 88.5950 | 116.1000 | 117.5000 |
| A0-J2 | 129.2140 | 129.1660 | 97.2000 | 98.7000 |
| A0-K0 | 124.3100 | 123.8560 | 79.2720 | 80.7530 |
| G1-J2 | 53.8980 | 53.5980 | 65.1000 | 66.4000 |
| G1-K0 | 75.3440 | 74.9170 | 34.6220 | 35.6780 |
| J2-K0 | 39.7350 | 39.7940 | 351.2250 | 352.1550 |
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 | 60754.32843831 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.843282 |
| 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 | 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 | 88.344 |
| HIERARCH ESO ISS PBL12 END | 88.595 |
| HIERARCH ESO ISS PBLA12 START | 116.1 |
| HIERARCH ESO ISS PBLA12 END | 117.5 |
| HIERARCH ESO ISS PBL13 START | 129.214 |
| HIERARCH ESO ISS PBL13 END | 129.166 |
| HIERARCH ESO ISS PBLA13 START | 97.2 |
| HIERARCH ESO ISS PBLA13 END | 98.7 |
| HIERARCH ESO ISS PBL14 START | 124.31 |
| HIERARCH ESO ISS PBL14 END | 123.856 |
| HIERARCH ESO ISS PBLA14 START | 79.272 |
| HIERARCH ESO ISS PBLA14 END | 80.753 |
| HIERARCH ESO ISS PBL23 START | 53.898 |
| HIERARCH ESO ISS PBL23 END | 53.598 |
| HIERARCH ESO ISS PBLA23 START | 65.1 |
| HIERARCH ESO ISS PBLA23 END | 66.4 |
| HIERARCH ESO ISS PBL24 START | 75.344 |
| HIERARCH ESO ISS PBL24 END | 74.917 |
| HIERARCH ESO ISS PBLA24 START | 34.622 |
| HIERARCH ESO ISS PBLA24 END | 35.678 |
| HIERARCH ESO ISS PBL34 START | 39.735 |
| HIERARCH ESO ISS PBL34 END | 39.794 |
| HIERARCH ESO ISS PBLA34 START | 351.225 |
| HIERARCH ESO ISS PBLA34 END | 352.155 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00483 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005241 |
| HIERARCH ESO ISS AMBI TEMP | 14.5 |
| HIERARCH ESO ISS AMBI FWHM START | 0.68 |
| HIERARCH ESO ISS AMBI FWHM END | 0.78 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.479 |
| HIERARCH ESO FT ROBJ DELTA | -604945.626 |