Exposure
- ID
- GRAVI.2024-02-29T08:27:12.883_2
- Header ID
- GRAVI.2024-02-29T08:27:12.883
- Date updated
- 2024-02-29 08:45:48 UTC+0000
- Release date
- 2025-02-28 08:45:48 UTC+0000
- UTC Start
- 2024-02-29 08:27:12.883
- UTC End
- 2024-02-29 08:33:52.883
- MJD Start
- 60369.35223244
- MJD End
- 60369.3568620696
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008907
- Ambient temperature (°C)
- 15.13
- Seeing (arcsec)
- 0.52
Observation
- ID
- 58574
- Category
- science
- Program ID
- 112.25BY.002
- Program Title
- GRAVITY ASTROMETRY OF STELLAR CONJUNCTIONS OF ALPHA CEN FOR STELLAR PHYSICS AND EXOPLANETS
- Program Type
- Normal
- PI / COI
- KERVELLA/ MÉRAND/ LACOUR/ FORVEILLE/ ARENOU/ THEVENIN/ BRANDNER/ STRAUBMEIER/ GARCIA/ WOILLEZ/ EISENHAUER/ PAUMARD/ ROUSSELET-PERRAUT/ PERRIN
Target
- ID
- 43368
- Name
- AlphaCenA
- RA
- 219.849375
- DEC
- -60.8318997222222
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 | 21.9430 | 22.0760 | 132.9000 | 134.1000 |
| A0-D0 | 31.6380 | 31.5690 | 70.1000 | 71.5000 |
| A0-C1 | 21.5810 | 21.6740 | 107.1330 | 108.5650 |
| B2-D0 | 29.1260 | 29.0030 | 28.0000 | 29.0000 |
| B2-C1 | 9.7000 | 9.6600 | 27.9270 | 28.9930 |
| D0-C1 | 19.4250 | 19.3430 | 207.9960 | 209.0630 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 112.25BY.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60369.35223244 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenA |
| HIERARCH ESO INS SOBJ NAME | StarS2 |
| RA | 219.845723 |
| DEC | -60.83175 |
| 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 | 21.943 |
| HIERARCH ESO ISS PBL12 END | 22.076 |
| HIERARCH ESO ISS PBLA12 START | 132.9 |
| HIERARCH ESO ISS PBLA12 END | 134.1 |
| HIERARCH ESO ISS PBL13 START | 31.638 |
| HIERARCH ESO ISS PBL13 END | 31.569 |
| HIERARCH ESO ISS PBLA13 START | 70.1 |
| HIERARCH ESO ISS PBLA13 END | 71.5 |
| HIERARCH ESO ISS PBL14 START | 21.581 |
| HIERARCH ESO ISS PBL14 END | 21.674 |
| HIERARCH ESO ISS PBLA14 START | 107.133 |
| HIERARCH ESO ISS PBLA14 END | 108.565 |
| HIERARCH ESO ISS PBL23 START | 29.126 |
| HIERARCH ESO ISS PBL23 END | 29.003 |
| HIERARCH ESO ISS PBLA23 START | 28.0 |
| HIERARCH ESO ISS PBLA23 END | 29.0 |
| HIERARCH ESO ISS PBL24 START | 9.7 |
| HIERARCH ESO ISS PBL24 END | 9.66 |
| HIERARCH ESO ISS PBLA24 START | 27.927 |
| HIERARCH ESO ISS PBLA24 END | 28.993 |
| HIERARCH ESO ISS PBL34 START | 19.425 |
| HIERARCH ESO ISS PBL34 END | 19.343 |
| HIERARCH ESO ISS PBLA34 START | 207.996 |
| HIERARCH ESO ISS PBLA34 END | 209.063 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.009702 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008112 |
| HIERARCH ESO ISS AMBI TEMP | 15.13 |
| HIERARCH ESO ISS AMBI FWHM START | 0.51 |
| HIERARCH ESO ISS AMBI FWHM END | 0.53 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA |
| HIERARCH ESO FT ROBJ ALPHA | 143923.850 |
| HIERARCH ESO FT ROBJ DELTA | -604954.839 |