Exposure
- ID
- GRAVI.2023-07-21T08:01:28.296_2
- Header ID
- GRAVI.2023-07-21T08:01:28.296
- Date updated
- 2023-07-21 08:10:28 UTC+0000
- Release date
- 2024-07-21 08:10:28 UTC+0000
- UTC Start
- 2023-07-21 08:01:28.296
- UTC End
- 2023-07-21 08:02:48.296
- MJD Start
- 60146.33435528
- MJD End
- 60146.335281205924
- Exposure time (s)
- 80.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005874
- Ambient temperature (°C)
- 15.69
- Seeing (arcsec)
- 0.515
Observation
- ID
- 56338
- Category
- science
- Program ID
- 109.238N.003
- Program Title
- UNCOVERING THE DYNAMICAL HISTORY OF BROWN DWARF COMPANIONS
- Program Type
- Monitoring
- PI / COI
- WANG/ LACOUR/ NOWAK/ MAIRE/ GIRARD/ PALADINI/ CORREIA/ VIGAN/ ZURLO/ LAGRANGE/ BLUNT/ HAUBOIS/ GARCIA LOPEZ/ DE ZEEUW/ HENNING/ NIELSEN/ BENISTY/ LANGLOIS/ RAMEAU/ HINKLEY/ OTTEN/ STOLKER/ KAMMERER/ MUZIC/ BOWLER/ PUEYO/ EISENHAUER/ KREIDBERG/ ...
Target
- ID
- 41739
- Name
- HD_4747
- RA
- 12.361504166666665
- DEC
- -23.2124625
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 | 85.2260 | 85.4010 | 107.9000 | 108.0000 |
| A0-J2 | 119.9790 | 120.2680 | 83.2000 | 83.4000 |
| A0-K0 | 119.8990 | 120.1340 | 59.8600 | 60.0730 |
| G1-J2 | 55.5170 | 55.5900 | 43.3000 | 43.5000 |
| G1-K0 | 89.3480 | 89.3700 | 14.6530 | 14.8560 |
| J2-K0 | 48.5390 | 48.5460 | 341.4430 | 341.5700 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 109.238N.003 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60146.33435528 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 4747 |
| HIERARCH ESO INS SOBJ NAME | HD4747B |
| RA | 12.362051 |
| DEC | -23.21181 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | COMBINED |
| 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 | 95.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 8 |
| HIERARCH ESO ISS PBL12 START | 85.226 |
| HIERARCH ESO ISS PBL12 END | 85.401 |
| HIERARCH ESO ISS PBLA12 START | 107.9 |
| HIERARCH ESO ISS PBLA12 END | 108.0 |
| HIERARCH ESO ISS PBL13 START | 119.979 |
| HIERARCH ESO ISS PBL13 END | 120.268 |
| HIERARCH ESO ISS PBLA13 START | 83.2 |
| HIERARCH ESO ISS PBLA13 END | 83.4 |
| HIERARCH ESO ISS PBL14 START | 119.899 |
| HIERARCH ESO ISS PBL14 END | 120.134 |
| HIERARCH ESO ISS PBLA14 START | 59.86 |
| HIERARCH ESO ISS PBLA14 END | 60.073 |
| HIERARCH ESO ISS PBL23 START | 55.517 |
| HIERARCH ESO ISS PBL23 END | 55.59 |
| HIERARCH ESO ISS PBLA23 START | 43.3 |
| HIERARCH ESO ISS PBLA23 END | 43.5 |
| HIERARCH ESO ISS PBL24 START | 89.348 |
| HIERARCH ESO ISS PBL24 END | 89.37 |
| HIERARCH ESO ISS PBLA24 START | 14.653 |
| HIERARCH ESO ISS PBLA24 END | 14.856 |
| HIERARCH ESO ISS PBL34 START | 48.539 |
| HIERARCH ESO ISS PBL34 END | 48.546 |
| HIERARCH ESO ISS PBLA34 START | 341.443 |
| HIERARCH ESO ISS PBLA34 END | 341.57 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005874 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005874 |
| HIERARCH ESO ISS AMBI TEMP | 15.69 |
| HIERARCH ESO ISS AMBI FWHM START | 0.54 |
| HIERARCH ESO ISS AMBI FWHM END | 0.49 |
| HIERARCH ESO FT ROBJ NAME | HD_4747 |
| HIERARCH ESO FT ROBJ ALPHA | 004926.761 |
| HIERARCH ESO FT ROBJ DELTA | -231244.865 |