Exposure
- ID
- GRAVI.2023-07-21T08:11:01.320_2
- Header ID
- GRAVI.2023-07-21T08:11:01.320
- Date updated
- 2023-07-21 08:20:17 UTC+0000
- Release date
- 2024-07-21 08:20:17 UTC+0000
- UTC Start
- 2023-07-21 08:11:01.320
- UTC End
- 2023-07-21 08:12:21.320
- MJD Start
- 60146.3409875
- MJD End
- 60146.341913425924
- Exposure time (s)
- 80.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007739
- Ambient temperature (°C)
- 15.72
- Seeing (arcsec)
- 0.47
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 | 86.2770 | 86.4340 | 108.6000 | 108.8000 |
| A0-J2 | 121.7200 | 121.9810 | 84.2000 | 84.4000 |
| A0-K0 | 121.3240 | 121.5400 | 61.1780 | 61.3830 |
| G1-J2 | 55.9650 | 56.0330 | 44.7000 | 44.9000 |
| G1-K0 | 89.4880 | 89.5100 | 15.9160 | 16.1150 |
| J2-K0 | 48.5750 | 48.5800 | 342.2500 | 342.3810 |
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 | 60146.3409875 |
| 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 | 86.277 |
| HIERARCH ESO ISS PBL12 END | 86.434 |
| HIERARCH ESO ISS PBLA12 START | 108.6 |
| HIERARCH ESO ISS PBLA12 END | 108.8 |
| HIERARCH ESO ISS PBL13 START | 121.72 |
| HIERARCH ESO ISS PBL13 END | 121.981 |
| HIERARCH ESO ISS PBLA13 START | 84.2 |
| HIERARCH ESO ISS PBLA13 END | 84.4 |
| HIERARCH ESO ISS PBL14 START | 121.324 |
| HIERARCH ESO ISS PBL14 END | 121.54 |
| HIERARCH ESO ISS PBLA14 START | 61.178 |
| HIERARCH ESO ISS PBLA14 END | 61.383 |
| HIERARCH ESO ISS PBL23 START | 55.965 |
| HIERARCH ESO ISS PBL23 END | 56.033 |
| HIERARCH ESO ISS PBLA23 START | 44.7 |
| HIERARCH ESO ISS PBLA23 END | 44.9 |
| HIERARCH ESO ISS PBL24 START | 89.488 |
| HIERARCH ESO ISS PBL24 END | 89.51 |
| HIERARCH ESO ISS PBLA24 START | 15.916 |
| HIERARCH ESO ISS PBLA24 END | 16.115 |
| HIERARCH ESO ISS PBL34 START | 48.575 |
| HIERARCH ESO ISS PBL34 END | 48.58 |
| HIERARCH ESO ISS PBLA34 START | 342.25 |
| HIERARCH ESO ISS PBLA34 END | 342.381 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008174 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007304 |
| HIERARCH ESO ISS AMBI TEMP | 15.72 |
| HIERARCH ESO ISS AMBI FWHM START | 0.46 |
| HIERARCH ESO ISS AMBI FWHM END | 0.48 |
| HIERARCH ESO FT ROBJ NAME | HD_4747 |
| HIERARCH ESO FT ROBJ ALPHA | 004926.761 |
| HIERARCH ESO FT ROBJ DELTA | -231244.865 |