Exposure
- ID
- GRAVI.2024-07-04T00:49:18.581_2
- Header ID
- GRAVI.2024-07-04T00:49:18.581
- Date updated
- 2024-07-04 01:05:31 UTC+0000
- Release date
- 2025-07-04 01:05:30 UTC+0000
- UTC Start
- 2024-07-04 00:49:18.581
- UTC End
- 2024-07-04 00:55:58.581
- MJD Start
- 60495.03424284
- MJD End
- 60495.0388724696
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008746
- Ambient temperature (°C)
- 15.98
- Seeing (arcsec)
- 0.795
Observation
- ID
- 59883
- Category
- science
- Program ID
- 113.267X.001
- Program Title
- GRAVITY ASTROMETRY OF STELLAR CONJUNCTIONS OF ALPHA CENTAURI FOR STELLAR PHYSICS AND EXOPLANETS
- Program Type
- Normal
- PI / COI
- KERVELLA / MÉRAND / LACOUR / FORVEILLE / ARENOU / THEVENIN / BOURDAROT / BRANDNER / STRAUBMEIER / GARCIA / WOILLEZ / EISENHAUER / PAUMARD / ROUSSELET-PERRAUT / PERRIN
Target
- ID
- 44429
- Name
- AlphaCenB
- RA
- 219.848558333333
- DEC
- -60.8294438888889
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 | 88.1180 | 88.3830 | 114.9000 | 116.3000 |
| A0-J2 | 129.2330 | 129.2090 | 95.9000 | 97.4000 |
| A0-K0 | 124.6730 | 124.2440 | 78.0200 | 79.4920 |
| G1-J2 | 54.1430 | 53.8540 | 63.9000 | 65.3000 |
| G1-K0 | 75.6940 | 75.2820 | 33.7270 | 34.7790 |
| J2-K0 | 39.6800 | 39.7450 | 350.4390 | 351.3630 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.267X.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60495.03424284 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.843648 |
| DEC | -60.82902 |
| 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 | 88.118 |
| HIERARCH ESO ISS PBL12 END | 88.383 |
| HIERARCH ESO ISS PBLA12 START | 114.9 |
| HIERARCH ESO ISS PBLA12 END | 116.3 |
| HIERARCH ESO ISS PBL13 START | 129.233 |
| HIERARCH ESO ISS PBL13 END | 129.209 |
| HIERARCH ESO ISS PBLA13 START | 95.9 |
| HIERARCH ESO ISS PBLA13 END | 97.4 |
| HIERARCH ESO ISS PBL14 START | 124.673 |
| HIERARCH ESO ISS PBL14 END | 124.244 |
| HIERARCH ESO ISS PBLA14 START | 78.02 |
| HIERARCH ESO ISS PBLA14 END | 79.492 |
| HIERARCH ESO ISS PBL23 START | 54.143 |
| HIERARCH ESO ISS PBL23 END | 53.854 |
| HIERARCH ESO ISS PBLA23 START | 63.9 |
| HIERARCH ESO ISS PBLA23 END | 65.3 |
| HIERARCH ESO ISS PBL24 START | 75.694 |
| HIERARCH ESO ISS PBL24 END | 75.282 |
| HIERARCH ESO ISS PBLA24 START | 33.727 |
| HIERARCH ESO ISS PBLA24 END | 34.779 |
| HIERARCH ESO ISS PBL34 START | 39.68 |
| HIERARCH ESO ISS PBL34 END | 39.745 |
| HIERARCH ESO ISS PBLA34 START | 350.439 |
| HIERARCH ESO ISS PBLA34 END | 351.363 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.009793 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007699 |
| HIERARCH ESO ISS AMBI TEMP | 15.98 |
| HIERARCH ESO ISS AMBI FWHM START | 0.8 |
| HIERARCH ESO ISS AMBI FWHM END | 0.79 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.654 |
| HIERARCH ESO FT ROBJ DELTA | -604945.998 |