Exposure
- ID
- GRAVI.2021-05-20T06:02:51.086_2
- Header ID
- GRAVI.2021-05-20T06:02:51.086
- Date updated
- 2021-09-29 14:27:15 UTC+0000
- Release date
- 2022-05-20 06:20:44 UTC+0000
- UTC Start
- 2021-05-20 06:02:51.086
- UTC End
- 2021-05-20 06:09:31.086
- MJD Start
- 59354.25198016
- MJD End
- 59354.2566097896
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003423
- Ambient temperature (°C)
- 9.78
- Seeing (arcsec)
- 0.78
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 | 23.9540 | 23.9870 | 163.2000 | 164.4000 |
| A0-D0 | 27.8900 | 27.6690 | 108.3000 | 110.0000 |
| A0-C1 | 22.6230 | 22.6240 | 143.5720 | 145.0930 |
| B2-D0 | 24.1520 | 23.8640 | 54.1000 | 55.1000 |
| B2-C1 | 8.0450 | 7.9490 | 54.0150 | 55.0490 |
| D0-C1 | 16.1070 | 15.9150 | 234.1040 | 235.1390 |
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 | 59354.25198016 |
| 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 | 23.954 |
| HIERARCH ESO ISS PBL12 END | 23.987 |
| HIERARCH ESO ISS PBLA12 START | 163.2 |
| HIERARCH ESO ISS PBLA12 END | 164.4 |
| HIERARCH ESO ISS PBL13 START | 27.89 |
| HIERARCH ESO ISS PBL13 END | 27.669 |
| HIERARCH ESO ISS PBLA13 START | 108.3 |
| HIERARCH ESO ISS PBLA13 END | 110.0 |
| HIERARCH ESO ISS PBL14 START | 22.623 |
| HIERARCH ESO ISS PBL14 END | 22.624 |
| HIERARCH ESO ISS PBLA14 START | 143.572 |
| HIERARCH ESO ISS PBLA14 END | 145.093 |
| HIERARCH ESO ISS PBL23 START | 24.152 |
| HIERARCH ESO ISS PBL23 END | 23.864 |
| HIERARCH ESO ISS PBLA23 START | 54.1 |
| HIERARCH ESO ISS PBLA23 END | 55.1 |
| HIERARCH ESO ISS PBL24 START | 8.045 |
| HIERARCH ESO ISS PBL24 END | 7.949 |
| HIERARCH ESO ISS PBLA24 START | 54.015 |
| HIERARCH ESO ISS PBLA24 END | 55.049 |
| HIERARCH ESO ISS PBL34 START | 16.107 |
| HIERARCH ESO ISS PBL34 END | 15.915 |
| HIERARCH ESO ISS PBLA34 START | 234.104 |
| HIERARCH ESO ISS PBLA34 END | 235.139 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003545 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003301 |
| HIERARCH ESO ISS AMBI TEMP | 9.78 |
| HIERARCH ESO ISS AMBI FWHM START | 0.76 |
| HIERARCH ESO ISS AMBI FWHM END | 0.8 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB_2021_05_17 |
| HIERARCH ESO FT ROBJ ALPHA | 143925.150 |
| HIERARCH ESO FT ROBJ DELTA | -604949.629 |