Exposure
- ID
- GRAVI.2023-07-21T08:17:25.336_2
- Header ID
- GRAVI.2023-07-21T08:17:25.336
- Date updated
- 2023-07-21 08:30:28 UTC+0000
- Release date
- 2024-07-21 08:30:28 UTC+0000
- UTC Start
- 2023-07-21 08:17:25.336
- UTC End
- 2023-07-21 08:24:05.336
- MJD Start
- 60146.34543213
- MJD End
- 60146.35006175963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005656
- Ambient temperature (°C)
- 15.75
- Seeing (arcsec)
- 0.45
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 | 86.9190 | 87.5530 | 109.1000 | 109.7000 |
| A0-J2 | 122.7960 | 123.8680 | 84.9000 | 85.6000 |
| A0-K0 | 122.2180 | 123.1200 | 62.0360 | 62.9370 |
| G1-J2 | 56.2490 | 56.5410 | 45.6000 | 46.6000 |
| G1-K0 | 89.5830 | 89.6850 | 16.7540 | 17.6460 |
| J2-K0 | 48.5940 | 48.6120 | 342.8080 | 343.4230 |
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 | 60146.34543213 |
| 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 | 86.919 |
| HIERARCH ESO ISS PBL12 END | 87.553 |
| HIERARCH ESO ISS PBLA12 START | 109.1 |
| HIERARCH ESO ISS PBLA12 END | 109.7 |
| HIERARCH ESO ISS PBL13 START | 122.796 |
| HIERARCH ESO ISS PBL13 END | 123.868 |
| HIERARCH ESO ISS PBLA13 START | 84.9 |
| HIERARCH ESO ISS PBLA13 END | 85.6 |
| HIERARCH ESO ISS PBL14 START | 122.218 |
| HIERARCH ESO ISS PBL14 END | 123.12 |
| HIERARCH ESO ISS PBLA14 START | 62.036 |
| HIERARCH ESO ISS PBLA14 END | 62.937 |
| HIERARCH ESO ISS PBL23 START | 56.249 |
| HIERARCH ESO ISS PBL23 END | 56.541 |
| HIERARCH ESO ISS PBLA23 START | 45.6 |
| HIERARCH ESO ISS PBLA23 END | 46.6 |
| HIERARCH ESO ISS PBL24 START | 89.583 |
| HIERARCH ESO ISS PBL24 END | 89.685 |
| HIERARCH ESO ISS PBLA24 START | 16.754 |
| HIERARCH ESO ISS PBLA24 END | 17.646 |
| HIERARCH ESO ISS PBL34 START | 48.594 |
| HIERARCH ESO ISS PBL34 END | 48.612 |
| HIERARCH ESO ISS PBLA34 START | 342.808 |
| HIERARCH ESO ISS PBLA34 END | 343.423 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005693 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005619 |
| HIERARCH ESO ISS AMBI TEMP | 15.75 |
| HIERARCH ESO ISS AMBI FWHM START | 0.5 |
| HIERARCH ESO ISS AMBI FWHM END | 0.4 |
| HIERARCH ESO FT ROBJ NAME | HD_4747 |
| HIERARCH ESO FT ROBJ ALPHA | 004926.761 |
| HIERARCH ESO FT ROBJ DELTA | -231244.865 |