Exposure
- ID
- GRAVI.2024-03-16T07:15:02.227_1
- Header ID
- GRAVI.2024-03-16T07:15:02.227
- Date updated
- 2024-03-16 07:35:36 UTC+0000
- Release date
- 2025-03-16 07:35:36 UTC+0000
- UTC Start
- 2024-03-16 07:15:02.227
- UTC End
- 2024-03-16 07:21:42.227
- MJD Start
- 60385.30210911
- MJD End
- 60385.3067387396
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0040715
- Ambient temperature (°C)
- 16.87
- Seeing (arcsec)
- 0.82
Observation
- ID
- 58758
- 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
- 43494
- Name
- StarS2
- RA
- 219.845657
- DEC
- -60.83176
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 85.8110 | 86.2080 | 105.2000 | 106.6000 |
| A0-J2 | 128.6730 | 128.8360 | 85.6000 | 87.2000 |
| A0-K0 | 126.8530 | 126.6090 | 68.0740 | 69.5420 |
| G1-J2 | 55.7730 | 55.5670 | 54.7000 | 56.0000 |
| G1-K0 | 78.0730 | 77.7670 | 26.5290 | 27.5990 |
| J2-K0 | 39.0580 | 39.1700 | 344.2240 | 345.1360 |
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 | 60385.30210911 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenA |
| HIERARCH ESO INS SOBJ NAME | StarS2 |
| RA | 219.845657 |
| DEC | -60.83176 |
| 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 | 85.811 |
| HIERARCH ESO ISS PBL12 END | 86.208 |
| HIERARCH ESO ISS PBLA12 START | 105.2 |
| HIERARCH ESO ISS PBLA12 END | 106.6 |
| HIERARCH ESO ISS PBL13 START | 128.673 |
| HIERARCH ESO ISS PBL13 END | 128.836 |
| HIERARCH ESO ISS PBLA13 START | 85.6 |
| HIERARCH ESO ISS PBLA13 END | 87.2 |
| HIERARCH ESO ISS PBL14 START | 126.853 |
| HIERARCH ESO ISS PBL14 END | 126.609 |
| HIERARCH ESO ISS PBLA14 START | 68.074 |
| HIERARCH ESO ISS PBLA14 END | 69.542 |
| HIERARCH ESO ISS PBL23 START | 55.773 |
| HIERARCH ESO ISS PBL23 END | 55.567 |
| HIERARCH ESO ISS PBLA23 START | 54.7 |
| HIERARCH ESO ISS PBLA23 END | 56.0 |
| HIERARCH ESO ISS PBL24 START | 78.073 |
| HIERARCH ESO ISS PBL24 END | 77.767 |
| HIERARCH ESO ISS PBLA24 START | 26.529 |
| HIERARCH ESO ISS PBLA24 END | 27.599 |
| HIERARCH ESO ISS PBL34 START | 39.058 |
| HIERARCH ESO ISS PBL34 END | 39.17 |
| HIERARCH ESO ISS PBLA34 START | 344.224 |
| HIERARCH ESO ISS PBLA34 END | 345.136 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004183 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00396 |
| HIERARCH ESO ISS AMBI TEMP | 16.87 |
| HIERARCH ESO ISS AMBI FWHM START | 0.75 |
| HIERARCH ESO ISS AMBI FWHM END | 0.89 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA |
| HIERARCH ESO FT ROBJ ALPHA | 143923.816 |
| HIERARCH ESO FT ROBJ DELTA | -604954.904 |