Exposure
- ID
- GRAVI.2021-05-20T06:10:06.105_2
- Header ID
- GRAVI.2021-05-20T06:10:06.105
- Date updated
- 2021-09-29 14:27:15 UTC+0000
- Release date
- 2022-05-20 06:25:25 UTC+0000
- UTC Start
- 2021-05-20 06:10:06.105
- UTC End
- 2021-05-20 06:16:46.105
- MJD Start
- 59354.2570151
- MJD End
- 59354.2616447296
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002732
- Ambient temperature (°C)
- 9.91
- Seeing (arcsec)
- 0.965
Observation
- ID
- 47398
- Category
- science
- Program ID
- 106.217D.003
- 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
- 35549
- Name
- AlphaCenB_2021_05_17
- RA
- 219.854791666667
- DEC
- -60.8304525
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 | 23.9880 | 24.0190 | 164.5000 | 165.7000 |
| A0-D0 | 27.6590 | 27.4340 | 110.1000 | 111.8000 |
| A0-C1 | 22.6240 | 22.6230 | 145.1580 | 146.6810 |
| B2-D0 | 23.8510 | 23.5550 | 55.2000 | 56.2000 |
| B2-C1 | 7.9450 | 7.8460 | 55.0940 | 56.1240 |
| D0-C1 | 15.9060 | 15.7090 | 235.1830 | 236.2140 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 106.217D.003 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59354.2570151 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | AlphaCenB_2021_05_17 |
| HIERARCH ESO INS SOBJ NAME | StarS1 |
| RA | 219.85034 |
| DEC | -60.83043 |
| HIERARCH ESO INS SPEC RES | LOW |
| HIERARCH ESO INS POLA MODE | COMBINED |
| 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 | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 23.988 |
| HIERARCH ESO ISS PBL12 END | 24.019 |
| HIERARCH ESO ISS PBLA12 START | 164.5 |
| HIERARCH ESO ISS PBLA12 END | 165.7 |
| HIERARCH ESO ISS PBL13 START | 27.659 |
| HIERARCH ESO ISS PBL13 END | 27.434 |
| HIERARCH ESO ISS PBLA13 START | 110.1 |
| HIERARCH ESO ISS PBLA13 END | 111.8 |
| HIERARCH ESO ISS PBL14 START | 22.624 |
| HIERARCH ESO ISS PBL14 END | 22.623 |
| HIERARCH ESO ISS PBLA14 START | 145.158 |
| HIERARCH ESO ISS PBLA14 END | 146.681 |
| HIERARCH ESO ISS PBL23 START | 23.851 |
| HIERARCH ESO ISS PBL23 END | 23.555 |
| HIERARCH ESO ISS PBLA23 START | 55.2 |
| HIERARCH ESO ISS PBLA23 END | 56.2 |
| HIERARCH ESO ISS PBL24 START | 7.945 |
| HIERARCH ESO ISS PBL24 END | 7.846 |
| HIERARCH ESO ISS PBLA24 START | 55.094 |
| HIERARCH ESO ISS PBLA24 END | 56.124 |
| HIERARCH ESO ISS PBL34 START | 15.906 |
| HIERARCH ESO ISS PBL34 END | 15.709 |
| HIERARCH ESO ISS PBLA34 START | 235.183 |
| HIERARCH ESO ISS PBLA34 END | 236.214 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003301 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002163 |
| HIERARCH ESO ISS AMBI TEMP | 9.91 |
| HIERARCH ESO ISS AMBI FWHM START | 0.87 |
| HIERARCH ESO ISS AMBI FWHM END | 1.06 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB_2021_05_17 |
| HIERARCH ESO FT ROBJ ALPHA | 143925.150 |
| HIERARCH ESO FT ROBJ DELTA | -604949.629 |