Exposure
- ID
- GRAVI.2023-07-21T07:28:34.213_2
- Header ID
- GRAVI.2023-07-21T07:28:34.213
- Date updated
- 2023-07-21 07:35:25 UTC+0000
- Release date
- 2024-07-21 07:35:25 UTC+0000
- UTC Start
- 2023-07-21 07:28:34.213
- UTC End
- 2023-07-21 07:29:54.213
- MJD Start
- 60146.31150709
- MJD End
- 60146.312433015926
- Exposure time (s)
- 80.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0049794999999999996
- Ambient temperature (°C)
- 15.78
- 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 | 80.6850 | 80.9250 | 105.6000 | 105.7000 |
| A0-J2 | 112.6780 | 113.0550 | 79.4000 | 79.6000 |
| A0-K0 | 114.1670 | 114.4550 | 54.8200 | 55.0700 |
| G1-J2 | 53.7970 | 53.8800 | 37.9000 | 38.2000 |
| G1-K0 | 88.9050 | 88.9230 | 10.1160 | 10.3300 |
| J2-K0 | 48.3430 | 48.3550 | 338.8470 | 338.9590 |
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 | 60146.31150709 |
| 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 | 80.685 |
| HIERARCH ESO ISS PBL12 END | 80.925 |
| HIERARCH ESO ISS PBLA12 START | 105.6 |
| HIERARCH ESO ISS PBLA12 END | 105.7 |
| HIERARCH ESO ISS PBL13 START | 112.678 |
| HIERARCH ESO ISS PBL13 END | 113.055 |
| HIERARCH ESO ISS PBLA13 START | 79.4 |
| HIERARCH ESO ISS PBLA13 END | 79.6 |
| HIERARCH ESO ISS PBL14 START | 114.167 |
| HIERARCH ESO ISS PBL14 END | 114.455 |
| HIERARCH ESO ISS PBLA14 START | 54.82 |
| HIERARCH ESO ISS PBLA14 END | 55.07 |
| HIERARCH ESO ISS PBL23 START | 53.797 |
| HIERARCH ESO ISS PBL23 END | 53.88 |
| HIERARCH ESO ISS PBLA23 START | 37.9 |
| HIERARCH ESO ISS PBLA23 END | 38.2 |
| HIERARCH ESO ISS PBL24 START | 88.905 |
| HIERARCH ESO ISS PBL24 END | 88.923 |
| HIERARCH ESO ISS PBLA24 START | 10.116 |
| HIERARCH ESO ISS PBLA24 END | 10.33 |
| HIERARCH ESO ISS PBL34 START | 48.343 |
| HIERARCH ESO ISS PBL34 END | 48.355 |
| HIERARCH ESO ISS PBLA34 START | 338.847 |
| HIERARCH ESO ISS PBLA34 END | 338.959 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004492 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005467 |
| HIERARCH ESO ISS AMBI TEMP | 15.78 |
| 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 |