Exposure
- ID
- GRAVI.2023-07-21T08:34:31.379_2
- Header ID
- GRAVI.2023-07-21T08:34:31.379
- Date updated
- 2023-07-21 08:45:31 UTC+0000
- Release date
- 2024-07-21 08:45:31 UTC+0000
- UTC Start
- 2023-07-21 08:34:31.379
- UTC End
- 2023-07-21 08:35:51.379
- MJD Start
- 60146.35730763
- MJD End
- 60146.358233555926
- Exposure time (s)
- 80.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008188
- Ambient temperature (°C)
- 15.82
- Seeing (arcsec)
- 0.4
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 | 88.3710 | 88.4810 | 110.5000 | 110.6000 |
| A0-J2 | 125.2710 | 125.4630 | 86.7000 | 86.8000 |
| A0-K0 | 124.3190 | 124.4860 | 64.2130 | 64.4010 |
| G1-J2 | 56.9340 | 56.9890 | 47.9000 | 48.1000 |
| G1-K0 | 89.8310 | 89.8530 | 18.9310 | 19.1210 |
| J2-K0 | 48.6300 | 48.6320 | 344.3470 | 344.4880 |
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 | 60146.35730763 |
| 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 | 88.371 |
| HIERARCH ESO ISS PBL12 END | 88.481 |
| HIERARCH ESO ISS PBLA12 START | 110.5 |
| HIERARCH ESO ISS PBLA12 END | 110.6 |
| HIERARCH ESO ISS PBL13 START | 125.271 |
| HIERARCH ESO ISS PBL13 END | 125.463 |
| HIERARCH ESO ISS PBLA13 START | 86.7 |
| HIERARCH ESO ISS PBLA13 END | 86.8 |
| HIERARCH ESO ISS PBL14 START | 124.319 |
| HIERARCH ESO ISS PBL14 END | 124.486 |
| HIERARCH ESO ISS PBLA14 START | 64.213 |
| HIERARCH ESO ISS PBLA14 END | 64.401 |
| HIERARCH ESO ISS PBL23 START | 56.934 |
| HIERARCH ESO ISS PBL23 END | 56.989 |
| HIERARCH ESO ISS PBLA23 START | 47.9 |
| HIERARCH ESO ISS PBLA23 END | 48.1 |
| HIERARCH ESO ISS PBL24 START | 89.831 |
| HIERARCH ESO ISS PBL24 END | 89.853 |
| HIERARCH ESO ISS PBLA24 START | 18.931 |
| HIERARCH ESO ISS PBLA24 END | 19.121 |
| HIERARCH ESO ISS PBL34 START | 48.63 |
| HIERARCH ESO ISS PBL34 END | 48.632 |
| HIERARCH ESO ISS PBLA34 START | 344.347 |
| HIERARCH ESO ISS PBLA34 END | 344.488 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008188 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008188 |
| HIERARCH ESO ISS AMBI TEMP | 15.82 |
| HIERARCH ESO ISS AMBI FWHM START | 0.4 |
| 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 |