Exposure
- ID
- GRAVI.2023-07-21T08:48:13.414_2
- Header ID
- GRAVI.2023-07-21T08:48:13.414
- Date updated
- 2023-07-21 09:05:28 UTC+0000
- Release date
- 2024-07-21 09:05:28 UTC+0000
- UTC Start
- 2023-07-21 08:48:13.414
- UTC End
- 2023-07-21 08:54:53.414
- MJD Start
- 60146.36682192
- MJD End
- 60146.371451549625
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008015000000000001
- Ambient temperature (°C)
- 15.74
- Seeing (arcsec)
- 0.33
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 | 89.2580 | 89.6170 | 111.6000 | 112.2000 |
| A0-J2 | 126.8270 | 127.4710 | 88.1000 | 88.7000 |
| A0-K0 | 125.6800 | 126.2570 | 65.8470 | 66.6450 |
| G1-J2 | 57.3900 | 57.5880 | 49.7000 | 50.5000 |
| G1-K0 | 90.0180 | 90.1050 | 20.6040 | 21.4320 |
| J2-K0 | 48.6450 | 48.6480 | 345.6260 | 346.2930 |
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 | 60146.36682192 |
| 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 | 89.258 |
| HIERARCH ESO ISS PBL12 END | 89.617 |
| HIERARCH ESO ISS PBLA12 START | 111.6 |
| HIERARCH ESO ISS PBLA12 END | 112.2 |
| HIERARCH ESO ISS PBL13 START | 126.827 |
| HIERARCH ESO ISS PBL13 END | 127.471 |
| HIERARCH ESO ISS PBLA13 START | 88.1 |
| HIERARCH ESO ISS PBLA13 END | 88.7 |
| HIERARCH ESO ISS PBL14 START | 125.68 |
| HIERARCH ESO ISS PBL14 END | 126.257 |
| HIERARCH ESO ISS PBLA14 START | 65.847 |
| HIERARCH ESO ISS PBLA14 END | 66.645 |
| HIERARCH ESO ISS PBL23 START | 57.39 |
| HIERARCH ESO ISS PBL23 END | 57.588 |
| HIERARCH ESO ISS PBLA23 START | 49.7 |
| HIERARCH ESO ISS PBLA23 END | 50.5 |
| HIERARCH ESO ISS PBL24 START | 90.018 |
| HIERARCH ESO ISS PBL24 END | 90.105 |
| HIERARCH ESO ISS PBLA24 START | 20.604 |
| HIERARCH ESO ISS PBLA24 END | 21.432 |
| HIERARCH ESO ISS PBL34 START | 48.645 |
| HIERARCH ESO ISS PBL34 END | 48.648 |
| HIERARCH ESO ISS PBLA34 START | 345.626 |
| HIERARCH ESO ISS PBLA34 END | 346.293 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00816 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00787 |
| HIERARCH ESO ISS AMBI TEMP | 15.74 |
| HIERARCH ESO ISS AMBI FWHM START | 0.33 |
| HIERARCH ESO ISS AMBI FWHM END | 0.33 |
| HIERARCH ESO FT ROBJ NAME | HD_4747 |
| HIERARCH ESO FT ROBJ ALPHA | 004926.761 |
| HIERARCH ESO FT ROBJ DELTA | -231244.865 |