Exposure
- ID
- GRAVI.2025-03-12T06:50:09.347_2
- Header ID
- GRAVI.2025-03-12T06:50:09.347
- Date updated
- 2025-03-12 07:05:41 UTC+0000
- Release date
- 2026-03-12 07:05:41 UTC+0000
- UTC Start
- 2025-03-12 06:50:09.347
- UTC End
- 2025-03-12 06:56:49.347
- MJD Start
- 60746.28483041
- MJD End
- 60746.289460039625
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.010537
- Ambient temperature (°C)
- 14.41
- Seeing (arcsec)
- 0.515
Observation
- ID
- 65031
- 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
- 48421
- Name
- AlphaCenB
- RA
- 219.84789999999998
- DEC
- -60.82933583333334
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 | 20.8020 | 20.9750 | 124.2000 | 125.4000 |
| A0-D0 | 31.9580 | 31.9330 | 59.2000 | 60.7000 |
| A0-C1 | 20.7450 | 20.8750 | 96.4540 | 97.9340 |
| B2-D0 | 29.8620 | 29.7780 | 20.0000 | 21.1000 |
| B2-C1 | 9.9450 | 9.9170 | 19.9950 | 21.0890 |
| D0-C1 | 19.9170 | 19.8610 | 200.0590 | 201.1540 |
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 | 60746.28483041 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.843319 |
| 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 | 20.802 |
| HIERARCH ESO ISS PBL12 END | 20.975 |
| HIERARCH ESO ISS PBLA12 START | 124.2 |
| HIERARCH ESO ISS PBLA12 END | 125.4 |
| HIERARCH ESO ISS PBL13 START | 31.958 |
| HIERARCH ESO ISS PBL13 END | 31.933 |
| HIERARCH ESO ISS PBLA13 START | 59.2 |
| HIERARCH ESO ISS PBLA13 END | 60.7 |
| HIERARCH ESO ISS PBL14 START | 20.745 |
| HIERARCH ESO ISS PBL14 END | 20.875 |
| HIERARCH ESO ISS PBLA14 START | 96.454 |
| HIERARCH ESO ISS PBLA14 END | 97.934 |
| HIERARCH ESO ISS PBL23 START | 29.862 |
| HIERARCH ESO ISS PBL23 END | 29.778 |
| HIERARCH ESO ISS PBLA23 START | 20.0 |
| HIERARCH ESO ISS PBLA23 END | 21.1 |
| HIERARCH ESO ISS PBL24 START | 9.945 |
| HIERARCH ESO ISS PBL24 END | 9.917 |
| HIERARCH ESO ISS PBLA24 START | 19.995 |
| HIERARCH ESO ISS PBLA24 END | 21.089 |
| HIERARCH ESO ISS PBL34 START | 19.917 |
| HIERARCH ESO ISS PBL34 END | 19.861 |
| HIERARCH ESO ISS PBLA34 START | 200.059 |
| HIERARCH ESO ISS PBLA34 END | 201.154 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.010537 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.010537 |
| HIERARCH ESO ISS AMBI TEMP | 14.41 |
| HIERARCH ESO ISS AMBI FWHM START | 0.48 |
| HIERARCH ESO ISS AMBI FWHM END | 0.55 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.496 |
| HIERARCH ESO FT ROBJ DELTA | -604945.609 |