Exposure
- ID
- GRAVI.2023-07-21T07:42:19.247_2
- Header ID
- GRAVI.2023-07-21T07:42:19.247
- Date updated
- 2023-07-21 08:00:20 UTC+0000
- Release date
- 2024-07-21 08:00:20 UTC+0000
- UTC Start
- 2023-07-21 07:42:19.247
- UTC End
- 2023-07-21 07:48:59.247
- MJD Start
- 60146.3210561
- MJD End
- 60146.32568572963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0061010000000000005
- Ambient temperature (°C)
- 15.85
- Seeing (arcsec)
- 0.365
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 | 82.7550 | 83.7060 | 106.6000 | 107.1000 |
| A0-J2 | 115.9670 | 117.5000 | 81.1000 | 81.9000 |
| A0-K0 | 116.7030 | 117.9100 | 57.0260 | 58.0840 |
| G1-J2 | 54.5430 | 54.9060 | 40.2000 | 41.4000 |
| G1-K0 | 89.0790 | 89.1740 | 12.0440 | 13.0010 |
| J2-K0 | 48.4400 | 48.4810 | 339.8950 | 340.4450 |
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 | 60146.3210561 |
| 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 | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 82.755 |
| HIERARCH ESO ISS PBL12 END | 83.706 |
| HIERARCH ESO ISS PBLA12 START | 106.6 |
| HIERARCH ESO ISS PBLA12 END | 107.1 |
| HIERARCH ESO ISS PBL13 START | 115.967 |
| HIERARCH ESO ISS PBL13 END | 117.5 |
| HIERARCH ESO ISS PBLA13 START | 81.1 |
| HIERARCH ESO ISS PBLA13 END | 81.9 |
| HIERARCH ESO ISS PBL14 START | 116.703 |
| HIERARCH ESO ISS PBL14 END | 117.91 |
| HIERARCH ESO ISS PBLA14 START | 57.026 |
| HIERARCH ESO ISS PBLA14 END | 58.084 |
| HIERARCH ESO ISS PBL23 START | 54.543 |
| HIERARCH ESO ISS PBL23 END | 54.906 |
| HIERARCH ESO ISS PBLA23 START | 40.2 |
| HIERARCH ESO ISS PBLA23 END | 41.4 |
| HIERARCH ESO ISS PBL24 START | 89.079 |
| HIERARCH ESO ISS PBL24 END | 89.174 |
| HIERARCH ESO ISS PBLA24 START | 12.044 |
| HIERARCH ESO ISS PBLA24 END | 13.001 |
| HIERARCH ESO ISS PBL34 START | 48.44 |
| HIERARCH ESO ISS PBL34 END | 48.481 |
| HIERARCH ESO ISS PBLA34 START | 339.895 |
| HIERARCH ESO ISS PBLA34 END | 340.445 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00675 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005452 |
| HIERARCH ESO ISS AMBI TEMP | 15.85 |
| HIERARCH ESO ISS AMBI FWHM START | 0.36 |
| HIERARCH ESO ISS AMBI FWHM END | 0.37 |
| HIERARCH ESO FT ROBJ NAME | HD_4747 |
| HIERARCH ESO FT ROBJ ALPHA | 004926.761 |
| HIERARCH ESO FT ROBJ DELTA | -231244.865 |