Exposure
- ID
- GRAVI.2025-03-09T06:21:21.809_1
- Header ID
- GRAVI.2025-03-09T06:21:21.809
- Date updated
- 2025-03-09 06:35:42 UTC+0000
- Release date
- 2026-03-09 06:35:42 UTC+0000
- UTC Start
- 2025-03-09 06:21:21.809
- UTC End
- 2025-03-09 06:28:01.809
- MJD Start
- 60743.26483575
- MJD End
- 60743.26946537963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005979
- Ambient temperature (°C)
- 15.09
- Seeing (arcsec)
- 0.7050000000000001
Observation
- ID
- 64997
- 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
- 48394
- Name
- StarS4
- RA
- 219.843348
- DEC
- -60.82896
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B2 | 19.6770 | 19.8830 | 117.1000 | 118.3000 |
| A0-D0 | 31.9990 | 32.0030 | 50.3000 | 51.8000 |
| A0-C1 | 19.8920 | 20.0480 | 87.6390 | 89.1700 |
| B2-D0 | 30.2550 | 30.1990 | 13.6000 | 14.7000 |
| B2-C1 | 10.0760 | 10.0570 | 13.5760 | 14.6760 |
| D0-C1 | 20.1790 | 20.1420 | 193.6360 | 194.7370 |
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 | 60743.26483575 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.843348 |
| 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 | 19.677 |
| HIERARCH ESO ISS PBL12 END | 19.883 |
| HIERARCH ESO ISS PBLA12 START | 117.1 |
| HIERARCH ESO ISS PBLA12 END | 118.3 |
| HIERARCH ESO ISS PBL13 START | 31.999 |
| HIERARCH ESO ISS PBL13 END | 32.003 |
| HIERARCH ESO ISS PBLA13 START | 50.3 |
| HIERARCH ESO ISS PBLA13 END | 51.8 |
| HIERARCH ESO ISS PBL14 START | 19.892 |
| HIERARCH ESO ISS PBL14 END | 20.048 |
| HIERARCH ESO ISS PBLA14 START | 87.639 |
| HIERARCH ESO ISS PBLA14 END | 89.17 |
| HIERARCH ESO ISS PBL23 START | 30.255 |
| HIERARCH ESO ISS PBL23 END | 30.199 |
| HIERARCH ESO ISS PBLA23 START | 13.6 |
| HIERARCH ESO ISS PBLA23 END | 14.7 |
| HIERARCH ESO ISS PBL24 START | 10.076 |
| HIERARCH ESO ISS PBL24 END | 10.057 |
| HIERARCH ESO ISS PBLA24 START | 13.576 |
| HIERARCH ESO ISS PBLA24 END | 14.676 |
| HIERARCH ESO ISS PBL34 START | 20.179 |
| HIERARCH ESO ISS PBL34 END | 20.142 |
| HIERARCH ESO ISS PBLA34 START | 193.636 |
| HIERARCH ESO ISS PBLA34 END | 194.737 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005345 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006613 |
| HIERARCH ESO ISS AMBI TEMP | 15.09 |
| HIERARCH ESO ISS AMBI FWHM START | 0.75 |
| HIERARCH ESO ISS AMBI FWHM END | 0.66 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.511 |
| HIERARCH ESO FT ROBJ DELTA | -604945.584 |