Exposure
- ID
- GRAVI.2024-03-05T08:28:26.858_1
- Header ID
- GRAVI.2024-03-05T08:28:26.858
- Date updated
- 2024-03-05 08:45:37 UTC+0000
- Release date
- 2025-03-05 08:45:36 UTC+0000
- UTC Start
- 2024-03-05 08:28:26.858
- UTC End
- 2024-03-05 08:35:06.858
- MJD Start
- 60374.35308864
- MJD End
- 60374.3577182696
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.012238
- Ambient temperature (°C)
- 15.76
- Seeing (arcsec)
- 0.345
Observation
- ID
- 58628
- 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
- 43396
- Name
- StarS2
- RA
- 219.845694
- DEC
- -60.83176
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 87.4020 | 87.7130 | 111.5000 | 112.9000 |
| A0-J2 | 129.1800 | 129.2220 | 92.3000 | 93.8000 |
| A0-K0 | 125.5910 | 125.2290 | 74.4870 | 75.9550 |
| G1-J2 | 54.7860 | 54.5280 | 60.6000 | 62.0000 |
| G1-K0 | 76.6220 | 76.2490 | 31.1840 | 32.2420 |
| J2-K0 | 39.4970 | 39.5790 | 348.2240 | 349.1440 |
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 | 60374.35308864 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenA |
| HIERARCH ESO INS SOBJ NAME | StarS2 |
| RA | 219.845694 |
| 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 | 87.402 |
| HIERARCH ESO ISS PBL12 END | 87.713 |
| HIERARCH ESO ISS PBLA12 START | 111.5 |
| HIERARCH ESO ISS PBLA12 END | 112.9 |
| HIERARCH ESO ISS PBL13 START | 129.18 |
| HIERARCH ESO ISS PBL13 END | 129.222 |
| HIERARCH ESO ISS PBLA13 START | 92.3 |
| HIERARCH ESO ISS PBLA13 END | 93.8 |
| HIERARCH ESO ISS PBL14 START | 125.591 |
| HIERARCH ESO ISS PBL14 END | 125.229 |
| HIERARCH ESO ISS PBLA14 START | 74.487 |
| HIERARCH ESO ISS PBLA14 END | 75.955 |
| HIERARCH ESO ISS PBL23 START | 54.786 |
| HIERARCH ESO ISS PBL23 END | 54.528 |
| HIERARCH ESO ISS PBLA23 START | 60.6 |
| HIERARCH ESO ISS PBLA23 END | 62.0 |
| HIERARCH ESO ISS PBL24 START | 76.622 |
| HIERARCH ESO ISS PBL24 END | 76.249 |
| HIERARCH ESO ISS PBLA24 START | 31.184 |
| HIERARCH ESO ISS PBLA24 END | 32.242 |
| HIERARCH ESO ISS PBL34 START | 39.497 |
| HIERARCH ESO ISS PBL34 END | 39.579 |
| HIERARCH ESO ISS PBLA34 START | 348.224 |
| HIERARCH ESO ISS PBLA34 END | 349.144 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.011188 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.013288 |
| HIERARCH ESO ISS AMBI TEMP | 15.76 |
| HIERARCH ESO ISS AMBI FWHM START | 0.36 |
| HIERARCH ESO ISS AMBI FWHM END | 0.33 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA |
| HIERARCH ESO FT ROBJ ALPHA | 143923.834 |
| HIERARCH ESO FT ROBJ DELTA | -604954.875 |