Exposure
- ID
- GRAVI.2023-07-21T08:38:37.390_2
- Header ID
- GRAVI.2023-07-21T08:38:37.390
- Date updated
- 2023-07-21 08:55:33 UTC+0000
- Release date
- 2024-07-21 08:55:33 UTC+0000
- UTC Start
- 2023-07-21 08:38:37.390
- UTC End
- 2023-07-21 08:45:17.390
- MJD Start
- 60146.36015498
- MJD End
- 60146.36478460963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007957
- Ambient temperature (°C)
- 15.81
- Seeing (arcsec)
- 0.31999999999999995
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 | 88.6610 | 89.1060 | 110.8000 | 111.4000 |
| A0-J2 | 125.7760 | 126.5560 | 87.1000 | 87.8000 |
| A0-K0 | 124.7560 | 125.4400 | 64.7110 | 65.5390 |
| G1-J2 | 57.0790 | 57.3090 | 48.5000 | 49.3000 |
| G1-K0 | 89.8890 | 89.9830 | 19.4370 | 20.2860 |
| J2-K0 | 48.6360 | 48.6430 | 344.7250 | 345.3760 |
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 | 60146.36015498 |
| 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 | 88.661 |
| HIERARCH ESO ISS PBL12 END | 89.106 |
| HIERARCH ESO ISS PBLA12 START | 110.8 |
| HIERARCH ESO ISS PBLA12 END | 111.4 |
| HIERARCH ESO ISS PBL13 START | 125.776 |
| HIERARCH ESO ISS PBL13 END | 126.556 |
| HIERARCH ESO ISS PBLA13 START | 87.1 |
| HIERARCH ESO ISS PBLA13 END | 87.8 |
| HIERARCH ESO ISS PBL14 START | 124.756 |
| HIERARCH ESO ISS PBL14 END | 125.44 |
| HIERARCH ESO ISS PBLA14 START | 64.711 |
| HIERARCH ESO ISS PBLA14 END | 65.539 |
| HIERARCH ESO ISS PBL23 START | 57.079 |
| HIERARCH ESO ISS PBL23 END | 57.309 |
| HIERARCH ESO ISS PBLA23 START | 48.5 |
| HIERARCH ESO ISS PBLA23 END | 49.3 |
| HIERARCH ESO ISS PBL24 START | 89.889 |
| HIERARCH ESO ISS PBL24 END | 89.983 |
| HIERARCH ESO ISS PBLA24 START | 19.437 |
| HIERARCH ESO ISS PBLA24 END | 20.286 |
| HIERARCH ESO ISS PBL34 START | 48.636 |
| HIERARCH ESO ISS PBL34 END | 48.643 |
| HIERARCH ESO ISS PBLA34 START | 344.725 |
| HIERARCH ESO ISS PBLA34 END | 345.376 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006695 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009219 |
| HIERARCH ESO ISS AMBI TEMP | 15.81 |
| HIERARCH ESO ISS AMBI FWHM START | 0.35 |
| HIERARCH ESO ISS AMBI FWHM END | 0.29 |
| HIERARCH ESO FT ROBJ NAME | HD_4747 |
| HIERARCH ESO FT ROBJ ALPHA | 004926.761 |
| HIERARCH ESO FT ROBJ DELTA | -231244.865 |