Exposure
- ID
- GRAVI.2023-07-21T08:27:01.361_2
- Header ID
- GRAVI.2023-07-21T08:27:01.361
- Date updated
- 2023-07-21 08:40:17 UTC+0000
- Release date
- 2024-07-21 08:40:17 UTC+0000
- UTC Start
- 2023-07-21 08:27:01.361
- UTC End
- 2023-07-21 08:33:41.361
- MJD Start
- 60146.35209908
- MJD End
- 60146.35672870963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006396499999999999
- Ambient temperature (°C)
- 15.81
- Seeing (arcsec)
- 0.395
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 | 87.7790 | 88.3270 | 109.9000 | 110.4000 |
| A0-J2 | 124.2530 | 125.1940 | 85.9000 | 86.6000 |
| A0-K0 | 123.4470 | 124.2530 | 63.2740 | 64.1400 |
| G1-J2 | 56.6470 | 56.9130 | 46.9000 | 47.9000 |
| G1-K0 | 89.7230 | 89.8230 | 17.9830 | 18.8580 |
| J2-K0 | 48.6170 | 48.6290 | 343.6610 | 344.2930 |
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 | 60146.35209908 |
| 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 | 87.779 |
| HIERARCH ESO ISS PBL12 END | 88.327 |
| HIERARCH ESO ISS PBLA12 START | 109.9 |
| HIERARCH ESO ISS PBLA12 END | 110.4 |
| HIERARCH ESO ISS PBL13 START | 124.253 |
| HIERARCH ESO ISS PBL13 END | 125.194 |
| HIERARCH ESO ISS PBLA13 START | 85.9 |
| HIERARCH ESO ISS PBLA13 END | 86.6 |
| HIERARCH ESO ISS PBL14 START | 123.447 |
| HIERARCH ESO ISS PBL14 END | 124.253 |
| HIERARCH ESO ISS PBLA14 START | 63.274 |
| HIERARCH ESO ISS PBLA14 END | 64.14 |
| HIERARCH ESO ISS PBL23 START | 56.647 |
| HIERARCH ESO ISS PBL23 END | 56.913 |
| HIERARCH ESO ISS PBLA23 START | 46.9 |
| HIERARCH ESO ISS PBLA23 END | 47.9 |
| HIERARCH ESO ISS PBL24 START | 89.723 |
| HIERARCH ESO ISS PBL24 END | 89.823 |
| HIERARCH ESO ISS PBLA24 START | 17.983 |
| HIERARCH ESO ISS PBLA24 END | 18.858 |
| HIERARCH ESO ISS PBL34 START | 48.617 |
| HIERARCH ESO ISS PBL34 END | 48.629 |
| HIERARCH ESO ISS PBLA34 START | 343.661 |
| HIERARCH ESO ISS PBLA34 END | 344.293 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006259 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006534 |
| HIERARCH ESO ISS AMBI TEMP | 15.81 |
| HIERARCH ESO ISS AMBI FWHM START | 0.39 |
| 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 |