Exposure
- ID
- GRAVI.2024-03-05T08:35:44.876_1
- Header ID
- GRAVI.2024-03-05T08:35:44.876
- Date updated
- 2024-03-05 08:50:42 UTC+0000
- Release date
- 2025-03-05 08:50:41 UTC+0000
- UTC Start
- 2024-03-05 08:35:44.876
- UTC End
- 2024-03-05 08:42:24.876
- MJD Start
- 60374.35815829
- MJD End
- 60374.3627879196
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.009989
- Ambient temperature (°C)
- 15.7
- Seeing (arcsec)
- 0.395
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 | 87.7310 | 88.0210 | 113.0000 | 114.4000 |
| A0-J2 | 129.2230 | 129.2360 | 93.8000 | 95.4000 |
| A0-K0 | 125.2070 | 124.8170 | 76.0400 | 77.5080 |
| G1-J2 | 54.5130 | 54.2420 | 62.1000 | 63.4000 |
| G1-K0 | 76.2270 | 75.8380 | 32.3030 | 33.3600 |
| J2-K0 | 39.5830 | 39.6570 | 349.1980 | 350.1210 |
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 | 60374.35815829 |
| 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 | 87.731 |
| HIERARCH ESO ISS PBL12 END | 88.021 |
| HIERARCH ESO ISS PBLA12 START | 113.0 |
| HIERARCH ESO ISS PBLA12 END | 114.4 |
| HIERARCH ESO ISS PBL13 START | 129.223 |
| HIERARCH ESO ISS PBL13 END | 129.236 |
| HIERARCH ESO ISS PBLA13 START | 93.8 |
| HIERARCH ESO ISS PBLA13 END | 95.4 |
| HIERARCH ESO ISS PBL14 START | 125.207 |
| HIERARCH ESO ISS PBL14 END | 124.817 |
| HIERARCH ESO ISS PBLA14 START | 76.04 |
| HIERARCH ESO ISS PBLA14 END | 77.508 |
| HIERARCH ESO ISS PBL23 START | 54.513 |
| HIERARCH ESO ISS PBL23 END | 54.242 |
| HIERARCH ESO ISS PBLA23 START | 62.1 |
| HIERARCH ESO ISS PBLA23 END | 63.4 |
| HIERARCH ESO ISS PBL24 START | 76.227 |
| HIERARCH ESO ISS PBL24 END | 75.838 |
| HIERARCH ESO ISS PBLA24 START | 32.303 |
| HIERARCH ESO ISS PBLA24 END | 33.36 |
| HIERARCH ESO ISS PBL34 START | 39.583 |
| HIERARCH ESO ISS PBL34 END | 39.657 |
| HIERARCH ESO ISS PBLA34 START | 349.198 |
| HIERARCH ESO ISS PBLA34 END | 350.121 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008877 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.011101 |
| HIERARCH ESO ISS AMBI TEMP | 15.7 |
| HIERARCH ESO ISS AMBI FWHM START | 0.41 |
| HIERARCH ESO ISS AMBI FWHM END | 0.38 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA |
| HIERARCH ESO FT ROBJ ALPHA | 143923.834 |
| HIERARCH ESO FT ROBJ DELTA | -604954.875 |