Exposure
- ID
- GRAVI.2023-05-21T02:03:22.056_2
- Header ID
- GRAVI.2023-05-21T02:03:22.056
- Date updated
- 2023-05-21 02:21:31 UTC+0000
- Release date
- 2024-05-21 02:21:30 UTC+0000
- UTC Start
- 2023-05-21 02:03:22.056
- UTC End
- 2023-05-21 02:10:02.056
- MJD Start
- 60085.08567194
- MJD End
- 60085.09030156963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002014
- Ambient temperature (°C)
- 10.0
- Seeing (arcsec)
- 1.055
Observation
- ID
- 55505
- Category
- science
- Program ID
- 106.217D.005
- Program Title
- HIGH PRECISION GRAVITY ASTROMETRY OF THREE STELLAR CONJUNCTIONS OF ALPHA CENTAURI A & B
- Program Type
- Monitoring
- PI / COI
- KERVELLA/ MÉRAND/ LACOUR/ FORVEILLE/ ARENOU/ THEVENIN/ BRANDNER/ STRAUBMEIER/ GARCIA/ WOILLEZ/ EISENHAUER/ PAUMARD/ PERRIN/ ROUSSELET-PERRAUT
Target
- ID
- 41111
- Name
- AlphaCenA_2023_05_20
- RA
- 219.85064999999997
- DEC
- -60.83200444444445
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 | 81.9260 | 82.4840 | 93.5000 | 95.0000 |
| A0-J2 | 126.4430 | 126.8100 | 73.4000 | 74.9000 |
| A0-K0 | 127.9260 | 127.8690 | 56.2480 | 57.7560 |
| G1-J2 | 57.0300 | 56.9050 | 43.7000 | 45.1000 |
| G1-K0 | 80.0130 | 79.8140 | 17.9020 | 19.0010 |
| J2-K0 | 37.9010 | 38.0730 | 337.0340 | 337.9330 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 106.217D.005 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60085.08567194 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenA_2023_05_20 |
| HIERARCH ESO INS SOBJ NAME | StarS2 |
| RA | 219.846448 |
| DEC | -60.83182 |
| 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 | 81.926 |
| HIERARCH ESO ISS PBL12 END | 82.484 |
| HIERARCH ESO ISS PBLA12 START | 93.5 |
| HIERARCH ESO ISS PBLA12 END | 95.0 |
| HIERARCH ESO ISS PBL13 START | 126.443 |
| HIERARCH ESO ISS PBL13 END | 126.81 |
| HIERARCH ESO ISS PBLA13 START | 73.4 |
| HIERARCH ESO ISS PBLA13 END | 74.9 |
| HIERARCH ESO ISS PBL14 START | 127.926 |
| HIERARCH ESO ISS PBL14 END | 127.869 |
| HIERARCH ESO ISS PBLA14 START | 56.248 |
| HIERARCH ESO ISS PBLA14 END | 57.756 |
| HIERARCH ESO ISS PBL23 START | 57.03 |
| HIERARCH ESO ISS PBL23 END | 56.905 |
| HIERARCH ESO ISS PBLA23 START | 43.7 |
| HIERARCH ESO ISS PBLA23 END | 45.1 |
| HIERARCH ESO ISS PBL24 START | 80.013 |
| HIERARCH ESO ISS PBL24 END | 79.814 |
| HIERARCH ESO ISS PBLA24 START | 17.902 |
| HIERARCH ESO ISS PBLA24 END | 19.001 |
| HIERARCH ESO ISS PBL34 START | 37.901 |
| HIERARCH ESO ISS PBL34 END | 38.073 |
| HIERARCH ESO ISS PBLA34 START | 337.034 |
| HIERARCH ESO ISS PBLA34 END | 337.933 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002345 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.001683 |
| HIERARCH ESO ISS AMBI TEMP | 10.0 |
| HIERARCH ESO ISS AMBI FWHM START | 0.95 |
| HIERARCH ESO ISS AMBI FWHM END | 1.16 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA_2023_05_20 |
| HIERARCH ESO FT ROBJ ALPHA | 143924.156 |
| HIERARCH ESO FT ROBJ DELTA | -604955.216 |