Exposure
- ID
- GRAVI.2021-05-22T23:40:13.384_1
- Header ID
- GRAVI.2021-05-22T23:40:13.384
- Date updated
- 2021-09-29 14:27:18 UTC+0000
- Release date
- 2022-05-22 23:55:31 UTC+0000
- UTC Start
- 2021-05-22 23:40:13.384
- UTC End
- 2021-05-22 23:45:33.384
- MJD Start
- 59356.98626602
- MJD End
- 59356.9899697237
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005893
- Ambient temperature (°C)
- 11.86
- Seeing (arcsec)
- 0.505
Observation
- ID
- 47437
- Category
- science
- Program ID
- 106.217D.002
- Program Title
- HIGH PRECISION GRAVITY ASTROMETRY OF THREE STELLAR CONJUNCTIONS OF ALPHA CENTAURI A & B
- Program Type
- Monitoring
- PI / COI
- KERVELLA/ M\XC3\XA9RAND/ LACOUR/ FORVEILLE/ ARENOU/ THEVENIN/ BRANDNER/ STRAUBMEIER/ GARCIA/ WOILLEZ/ EISENHAUER/ PAUMARD/ PERRIN/ ROUSSELET-PERRAUT
Target
- ID
- 35577
- Name
- StarS1
- RA
- 219.859958
- DEC
- -60.83039
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 50.9370 | 50.9520 | 356.6000 | 357.5000 |
| U1-U3 | 95.5750 | 95.5610 | 1.3000 | 2.3000 |
| U1-U4 | 130.2020 | 130.2070 | 19.4600 | 20.7210 |
| U2-U3 | 44.9990 | 44.9800 | 6.6000 | 7.6000 |
| U2-U4 | 85.5750 | 85.7480 | 32.8160 | 34.2460 |
| U3-U4 | 49.4010 | 49.7900 | 56.5710 | 58.1150 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 106.217D.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59356.98626602 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB_2021_05_22 |
| HIERARCH ESO INS SOBJ NAME | StarS1 |
| RA | 219.859958 |
| DEC | -60.83039 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | SPLIT |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | U1 |
| HIERARCH ESO ISS CONF STATION2 | U2 |
| HIERARCH ESO ISS CONF STATION3 | U3 |
| HIERARCH ESO ISS CONF STATION4 | U4 |
| EXPTIME | 342.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 32 |
| HIERARCH ESO ISS PBL12 START | 50.937 |
| HIERARCH ESO ISS PBL12 END | 50.952 |
| HIERARCH ESO ISS PBLA12 START | 356.6 |
| HIERARCH ESO ISS PBLA12 END | 357.5 |
| HIERARCH ESO ISS PBL13 START | 95.575 |
| HIERARCH ESO ISS PBL13 END | 95.561 |
| HIERARCH ESO ISS PBLA13 START | 1.3 |
| HIERARCH ESO ISS PBLA13 END | 2.3 |
| HIERARCH ESO ISS PBL14 START | 130.202 |
| HIERARCH ESO ISS PBL14 END | 130.207 |
| HIERARCH ESO ISS PBLA14 START | 19.46 |
| HIERARCH ESO ISS PBLA14 END | 20.721 |
| HIERARCH ESO ISS PBL23 START | 44.999 |
| HIERARCH ESO ISS PBL23 END | 44.98 |
| HIERARCH ESO ISS PBLA23 START | 6.6 |
| HIERARCH ESO ISS PBLA23 END | 7.6 |
| HIERARCH ESO ISS PBL24 START | 85.575 |
| HIERARCH ESO ISS PBL24 END | 85.748 |
| HIERARCH ESO ISS PBLA24 START | 32.816 |
| HIERARCH ESO ISS PBLA24 END | 34.246 |
| HIERARCH ESO ISS PBL34 START | 49.401 |
| HIERARCH ESO ISS PBL34 END | 49.79 |
| HIERARCH ESO ISS PBLA34 START | 56.571 |
| HIERARCH ESO ISS PBLA34 END | 58.115 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006068 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005718 |
| HIERARCH ESO ISS AMBI TEMP | 11.86 |
| HIERARCH ESO ISS AMBI FWHM START | 0.59 |
| HIERARCH ESO ISS AMBI FWHM END | 0.42 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB_2021_05_22 |
| HIERARCH ESO FT ROBJ ALPHA | 143925.133 |
| HIERARCH ESO FT ROBJ DELTA | -604949.581 |