Exposure
- ID
- GRAVI.2025-03-03T08:54:04.338_2
- Header ID
- GRAVI.2025-03-03T08:54:04.338
- Date updated
- 2025-03-03 09:10:37 UTC+0000
- Release date
- 2026-03-03 09:10:37 UTC+0000
- UTC Start
- 2025-03-03 08:54:04.338
- UTC End
- 2025-03-03 09:00:44.338
- MJD Start
- 60737.37088354
- MJD End
- 60737.37551316963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004511
- Ambient temperature (°C)
- 12.68
- Seeing (arcsec)
- 0.8049999999999999
Observation
- ID
- 64901
- 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
- 48331
- Name
- AlphaCenB
- RA
- 219.8480208333333
- DEC
- -60.82932055555556
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- A0 G1 J2 K0
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 88.1240 | 88.3900 | 114.9000 | 116.4000 |
| A0-J2 | 129.2330 | 129.2080 | 95.9000 | 97.4000 |
| A0-K0 | 124.6640 | 124.2320 | 78.0580 | 79.5340 |
| G1-J2 | 54.1370 | 53.8470 | 63.9000 | 65.3000 |
| G1-K0 | 75.6860 | 75.2730 | 33.7540 | 34.8090 |
| J2-K0 | 39.6830 | 39.7480 | 350.4650 | 351.3920 |
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 | 60737.37088354 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.843377 |
| DEC | -60.82895 |
| 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 | 88.124 |
| HIERARCH ESO ISS PBL12 END | 88.39 |
| HIERARCH ESO ISS PBLA12 START | 114.9 |
| HIERARCH ESO ISS PBLA12 END | 116.4 |
| HIERARCH ESO ISS PBL13 START | 129.233 |
| HIERARCH ESO ISS PBL13 END | 129.208 |
| HIERARCH ESO ISS PBLA13 START | 95.9 |
| HIERARCH ESO ISS PBLA13 END | 97.4 |
| HIERARCH ESO ISS PBL14 START | 124.664 |
| HIERARCH ESO ISS PBL14 END | 124.232 |
| HIERARCH ESO ISS PBLA14 START | 78.058 |
| HIERARCH ESO ISS PBLA14 END | 79.534 |
| HIERARCH ESO ISS PBL23 START | 54.137 |
| HIERARCH ESO ISS PBL23 END | 53.847 |
| HIERARCH ESO ISS PBLA23 START | 63.9 |
| HIERARCH ESO ISS PBLA23 END | 65.3 |
| HIERARCH ESO ISS PBL24 START | 75.686 |
| HIERARCH ESO ISS PBL24 END | 75.273 |
| HIERARCH ESO ISS PBLA24 START | 33.754 |
| HIERARCH ESO ISS PBLA24 END | 34.809 |
| HIERARCH ESO ISS PBL34 START | 39.683 |
| HIERARCH ESO ISS PBL34 END | 39.748 |
| HIERARCH ESO ISS PBLA34 START | 350.465 |
| HIERARCH ESO ISS PBLA34 END | 351.392 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003663 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005359 |
| HIERARCH ESO ISS AMBI TEMP | 12.68 |
| HIERARCH ESO ISS AMBI FWHM START | 0.85 |
| HIERARCH ESO ISS AMBI FWHM END | 0.76 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.525 |
| HIERARCH ESO FT ROBJ DELTA | -604945.554 |