Exposure
- ID
- GRAVI.2025-03-10T07:01:17.737_1
- Header ID
- GRAVI.2025-03-10T07:01:17.737
- Date updated
- 2025-03-10 07:20:47 UTC+0000
- Release date
- 2026-03-10 07:20:47 UTC+0000
- UTC Start
- 2025-03-10 07:01:17.737
- UTC End
- 2025-03-10 07:07:57.737
- MJD Start
- 60744.2925664
- MJD End
- 60744.29719602963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.014745000000000001
- Ambient temperature (°C)
- 13.54
- Seeing (arcsec)
- 0.4
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 | 20.8830 | 21.0530 | 124.7000 | 125.9000 |
| A0-D0 | 31.9470 | 31.9200 | 59.9000 | 61.4000 |
| A0-C1 | 20.8060 | 20.9340 | 97.1370 | 98.6070 |
| B2-D0 | 29.8230 | 29.7370 | 20.5000 | 21.6000 |
| B2-C1 | 9.9320 | 9.9040 | 20.4990 | 21.5860 |
| D0-C1 | 19.8910 | 19.8330 | 200.5630 | 201.6520 |
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 | 60744.2925664 |
| 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 | 20.883 |
| HIERARCH ESO ISS PBL12 END | 21.053 |
| HIERARCH ESO ISS PBLA12 START | 124.7 |
| HIERARCH ESO ISS PBLA12 END | 125.9 |
| HIERARCH ESO ISS PBL13 START | 31.947 |
| HIERARCH ESO ISS PBL13 END | 31.92 |
| HIERARCH ESO ISS PBLA13 START | 59.9 |
| HIERARCH ESO ISS PBLA13 END | 61.4 |
| HIERARCH ESO ISS PBL14 START | 20.806 |
| HIERARCH ESO ISS PBL14 END | 20.934 |
| HIERARCH ESO ISS PBLA14 START | 97.137 |
| HIERARCH ESO ISS PBLA14 END | 98.607 |
| HIERARCH ESO ISS PBL23 START | 29.823 |
| HIERARCH ESO ISS PBL23 END | 29.737 |
| HIERARCH ESO ISS PBLA23 START | 20.5 |
| HIERARCH ESO ISS PBLA23 END | 21.6 |
| HIERARCH ESO ISS PBL24 START | 9.932 |
| HIERARCH ESO ISS PBL24 END | 9.904 |
| HIERARCH ESO ISS PBLA24 START | 20.499 |
| HIERARCH ESO ISS PBLA24 END | 21.586 |
| HIERARCH ESO ISS PBL34 START | 19.891 |
| HIERARCH ESO ISS PBL34 END | 19.833 |
| HIERARCH ESO ISS PBLA34 START | 200.563 |
| HIERARCH ESO ISS PBLA34 END | 201.652 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.01482 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.01467 |
| HIERARCH ESO ISS AMBI TEMP | 13.54 |
| HIERARCH ESO ISS AMBI FWHM START | 0.44 |
| HIERARCH ESO ISS AMBI FWHM END | 0.36 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.511 |
| HIERARCH ESO FT ROBJ DELTA | -604945.584 |