Exposure
- ID
- GRAVI.2025-03-21T06:36:59.444_1
- Header ID
- GRAVI.2025-03-21T06:36:59.444
- Date updated
- 2025-03-21 06:55:38 UTC+0000
- Release date
- 2026-03-21 06:55:38 UTC+0000
- UTC Start
- 2025-03-21 06:36:59.444
- UTC End
- 2025-03-21 06:43:39.444
- MJD Start
- 60755.27568801
- MJD End
- 60755.28031763963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007929499999999999
- Ambient temperature (°C)
- 15.25
- Seeing (arcsec)
- 0.35
Observation
- ID
- 65721
- 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
- 48894
- Name
- StarS4
- RA
- 219.843244
- DEC
- -60.82896
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 84.5840 | 85.0400 | 101.1000 | 102.6000 |
| A0-J2 | 128.0710 | 128.3100 | 81.4000 | 82.9000 |
| A0-K0 | 127.4020 | 127.2290 | 63.9260 | 65.4080 |
| G1-J2 | 56.2920 | 56.1170 | 50.8000 | 52.2000 |
| G1-K0 | 78.8570 | 78.5890 | 23.5030 | 24.5850 |
| J2-K0 | 38.7020 | 38.8350 | 341.6660 | 342.5750 |
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 | 60755.27568801 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.843244 |
| 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 | 84.584 |
| HIERARCH ESO ISS PBL12 END | 85.04 |
| HIERARCH ESO ISS PBLA12 START | 101.1 |
| HIERARCH ESO ISS PBLA12 END | 102.6 |
| HIERARCH ESO ISS PBL13 START | 128.071 |
| HIERARCH ESO ISS PBL13 END | 128.31 |
| HIERARCH ESO ISS PBLA13 START | 81.4 |
| HIERARCH ESO ISS PBLA13 END | 82.9 |
| HIERARCH ESO ISS PBL14 START | 127.402 |
| HIERARCH ESO ISS PBL14 END | 127.229 |
| HIERARCH ESO ISS PBLA14 START | 63.926 |
| HIERARCH ESO ISS PBLA14 END | 65.408 |
| HIERARCH ESO ISS PBL23 START | 56.292 |
| HIERARCH ESO ISS PBL23 END | 56.117 |
| HIERARCH ESO ISS PBLA23 START | 50.8 |
| HIERARCH ESO ISS PBLA23 END | 52.2 |
| HIERARCH ESO ISS PBL24 START | 78.857 |
| HIERARCH ESO ISS PBL24 END | 78.589 |
| HIERARCH ESO ISS PBLA24 START | 23.503 |
| HIERARCH ESO ISS PBLA24 END | 24.585 |
| HIERARCH ESO ISS PBL34 START | 38.702 |
| HIERARCH ESO ISS PBL34 END | 38.835 |
| HIERARCH ESO ISS PBLA34 START | 341.666 |
| HIERARCH ESO ISS PBLA34 END | 342.575 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008638 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007221 |
| HIERARCH ESO ISS AMBI TEMP | 15.25 |
| HIERARCH ESO ISS AMBI FWHM START | 0.33 |
| HIERARCH ESO ISS AMBI FWHM END | 0.37 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.462 |
| HIERARCH ESO FT ROBJ DELTA | -604945.637 |