Exposure
- ID
- GRAVI.2025-03-20T07:37:45.032_1
- Header ID
- GRAVI.2025-03-20T07:37:45.032
- Date updated
- 2025-03-20 07:55:49 UTC+0000
- Release date
- 2026-03-20 07:55:49 UTC+0000
- UTC Start
- 2025-03-20 07:37:45.032
- UTC End
- 2025-03-20 07:44:25.032
- MJD Start
- 60754.31788231
- MJD End
- 60754.32251193963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003678
- Ambient temperature (°C)
- 14.42
- Seeing (arcsec)
- 0.9750000000000001
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 | 87.7280 | 88.0200 | 113.0000 | 114.4000 |
| A0-J2 | 129.2230 | 129.2360 | 93.8000 | 95.4000 |
| A0-K0 | 125.2080 | 124.8160 | 76.0330 | 77.5090 |
| G1-J2 | 54.5130 | 54.2400 | 62.0000 | 63.4000 |
| G1-K0 | 76.2250 | 75.8330 | 32.3000 | 33.3610 |
| J2-K0 | 39.5800 | 39.6550 | 349.1920 | 350.1190 |
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 | 60754.31788231 |
| 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 | 87.728 |
| HIERARCH ESO ISS PBL12 END | 88.02 |
| HIERARCH ESO ISS PBLA12 START | 113.0 |
| HIERARCH ESO ISS PBLA12 END | 114.4 |
| HIERARCH ESO ISS PBL13 START | 129.223 |
| HIERARCH ESO ISS PBL13 END | 129.236 |
| HIERARCH ESO ISS PBLA13 START | 93.8 |
| HIERARCH ESO ISS PBLA13 END | 95.4 |
| HIERARCH ESO ISS PBL14 START | 125.208 |
| HIERARCH ESO ISS PBL14 END | 124.816 |
| HIERARCH ESO ISS PBLA14 START | 76.033 |
| HIERARCH ESO ISS PBLA14 END | 77.509 |
| HIERARCH ESO ISS PBL23 START | 54.513 |
| HIERARCH ESO ISS PBL23 END | 54.24 |
| HIERARCH ESO ISS PBLA23 START | 62.0 |
| HIERARCH ESO ISS PBLA23 END | 63.4 |
| HIERARCH ESO ISS PBL24 START | 76.225 |
| HIERARCH ESO ISS PBL24 END | 75.833 |
| HIERARCH ESO ISS PBLA24 START | 32.3 |
| HIERARCH ESO ISS PBLA24 END | 33.361 |
| HIERARCH ESO ISS PBL34 START | 39.58 |
| HIERARCH ESO ISS PBL34 END | 39.655 |
| HIERARCH ESO ISS PBLA34 START | 349.192 |
| HIERARCH ESO ISS PBLA34 END | 350.119 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003123 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004233 |
| HIERARCH ESO ISS AMBI TEMP | 14.42 |
| HIERARCH ESO ISS AMBI FWHM START | 1.09 |
| HIERARCH ESO ISS AMBI FWHM END | 0.86 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.479 |
| HIERARCH ESO FT ROBJ DELTA | -604945.626 |