Exposure
- ID
- GRAVI.2023-07-09T01:37:53.187_2
- Header ID
- GRAVI.2023-07-09T01:37:53.187
- Date updated
- 2023-07-09 02:00:55 UTC+0000
- Release date
- 2024-07-09 02:00:55 UTC+0000
- UTC Start
- 2023-07-09 01:37:53.187
- UTC End
- 2023-07-09 01:46:13.187
- MJD Start
- 60134.0679767
- MJD End
- 60134.07376373703
- Exposure time (s)
- 500.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0036395
- Ambient temperature (°C)
- 11.82
- Seeing (arcsec)
- 0.565
Observation
- ID
- 56182
- 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
- 41623
- Name
- AlphaCenB_2023_07_08
- RA
- 219.85045416666665
- DEC
- -60.829724722222224
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 | 23.4350 | 23.5180 | 150.7000 | 152.2000 |
| A0-D0 | 29.8870 | 29.6710 | 92.1000 | 94.1000 |
| A0-C1 | 22.4800 | 22.5140 | 128.4980 | 130.3340 |
| B2-D0 | 26.6730 | 26.4010 | 43.6000 | 44.9000 |
| B2-C1 | 8.8840 | 8.7930 | 43.5490 | 44.8530 |
| D0-C1 | 17.7890 | 17.6070 | 223.6290 | 224.9340 |
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 | 60134.0679767 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB_2023_07_08 |
| HIERARCH ESO INS SOBJ NAME | StarS3 |
| RA | 219.846228 |
| DEC | -60.8296 |
| 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 | 515.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 5 |
| HIERARCH ESO ISS PBL12 START | 23.435 |
| HIERARCH ESO ISS PBL12 END | 23.518 |
| HIERARCH ESO ISS PBLA12 START | 150.7 |
| HIERARCH ESO ISS PBLA12 END | 152.2 |
| HIERARCH ESO ISS PBL13 START | 29.887 |
| HIERARCH ESO ISS PBL13 END | 29.671 |
| HIERARCH ESO ISS PBLA13 START | 92.1 |
| HIERARCH ESO ISS PBLA13 END | 94.1 |
| HIERARCH ESO ISS PBL14 START | 22.48 |
| HIERARCH ESO ISS PBL14 END | 22.514 |
| HIERARCH ESO ISS PBLA14 START | 128.498 |
| HIERARCH ESO ISS PBLA14 END | 130.334 |
| HIERARCH ESO ISS PBL23 START | 26.673 |
| HIERARCH ESO ISS PBL23 END | 26.401 |
| HIERARCH ESO ISS PBLA23 START | 43.6 |
| HIERARCH ESO ISS PBLA23 END | 44.9 |
| HIERARCH ESO ISS PBL24 START | 8.884 |
| HIERARCH ESO ISS PBL24 END | 8.793 |
| HIERARCH ESO ISS PBLA24 START | 43.549 |
| HIERARCH ESO ISS PBLA24 END | 44.853 |
| HIERARCH ESO ISS PBL34 START | 17.789 |
| HIERARCH ESO ISS PBL34 END | 17.607 |
| HIERARCH ESO ISS PBLA34 START | 223.629 |
| HIERARCH ESO ISS PBLA34 END | 224.934 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.0039 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003379 |
| HIERARCH ESO ISS AMBI TEMP | 11.82 |
| HIERARCH ESO ISS AMBI FWHM START | 0.52 |
| HIERARCH ESO ISS AMBI FWHM END | 0.61 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB_2023_07_08 |
| HIERARCH ESO FT ROBJ ALPHA | 143924.109 |
| HIERARCH ESO FT ROBJ DELTA | -604947.009 |