Exposure
- ID
- GRAVI.2025-03-10T07:08:32.756_2
- Header ID
- GRAVI.2025-03-10T07:08:32.756
- Date updated
- 2025-03-10 07:25:36 UTC+0000
- Release date
- 2026-03-10 07:25:36 UTC+0000
- UTC Start
- 2025-03-10 07:08:32.756
- UTC End
- 2025-03-10 07:15:12.756
- MJD Start
- 60744.29760134
- MJD End
- 60744.302230969624
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.013863
- Ambient temperature (°C)
- 13.55
- Seeing (arcsec)
- 0.35
Observation
- ID
- 64998
- 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
- 48395
- Name
- AlphaCenB
- RA
- 219.84796249999997
- DEC
- -60.829328888888895
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- A0 B2 D0 C1
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B2 | 21.0620 | 21.2260 | 126.0000 | 127.1000 |
| A0-D0 | 31.9180 | 31.8850 | 61.4000 | 62.9000 |
| A0-C1 | 20.9400 | 21.0630 | 98.6850 | 100.1480 |
| B2-D0 | 29.7320 | 29.6400 | 21.7000 | 22.8000 |
| B2-C1 | 9.9020 | 9.8720 | 21.6440 | 22.7290 |
| D0-C1 | 19.8300 | 19.7690 | 201.7090 | 202.7950 |
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 | 60744.29760134 |
| 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 | 21.062 |
| HIERARCH ESO ISS PBL12 END | 21.226 |
| HIERARCH ESO ISS PBLA12 START | 126.0 |
| HIERARCH ESO ISS PBLA12 END | 127.1 |
| HIERARCH ESO ISS PBL13 START | 31.918 |
| HIERARCH ESO ISS PBL13 END | 31.885 |
| HIERARCH ESO ISS PBLA13 START | 61.4 |
| HIERARCH ESO ISS PBLA13 END | 62.9 |
| HIERARCH ESO ISS PBL14 START | 20.94 |
| HIERARCH ESO ISS PBL14 END | 21.063 |
| HIERARCH ESO ISS PBLA14 START | 98.685 |
| HIERARCH ESO ISS PBLA14 END | 100.148 |
| HIERARCH ESO ISS PBL23 START | 29.732 |
| HIERARCH ESO ISS PBL23 END | 29.64 |
| HIERARCH ESO ISS PBLA23 START | 21.7 |
| HIERARCH ESO ISS PBLA23 END | 22.8 |
| HIERARCH ESO ISS PBL24 START | 9.902 |
| HIERARCH ESO ISS PBL24 END | 9.872 |
| HIERARCH ESO ISS PBLA24 START | 21.644 |
| HIERARCH ESO ISS PBLA24 END | 22.729 |
| HIERARCH ESO ISS PBL34 START | 19.83 |
| HIERARCH ESO ISS PBL34 END | 19.769 |
| HIERARCH ESO ISS PBLA34 START | 201.709 |
| HIERARCH ESO ISS PBLA34 END | 202.795 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.01467 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.013056 |
| HIERARCH ESO ISS AMBI TEMP | 13.55 |
| HIERARCH ESO ISS AMBI FWHM START | 0.36 |
| HIERARCH ESO ISS AMBI FWHM END | 0.34 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.511 |
| HIERARCH ESO FT ROBJ DELTA | -604945.584 |