Exposure
- ID
- GRAVI.2023-07-21T08:24:55.355_1
- Header ID
- GRAVI.2023-07-21T08:24:55.355
- Date updated
- 2023-07-21 08:35:30 UTC+0000
- Release date
- 2024-07-21 08:35:29 UTC+0000
- UTC Start
- 2023-07-21 08:24:55.355
- UTC End
- 2023-07-21 08:26:15.355
- MJD Start
- 60146.35064068
- MJD End
- 60146.351566605925
- Exposure time (s)
- 80.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0065455
- Ambient temperature (°C)
- 15.82
- Seeing (arcsec)
- 0.41000000000000003
Observation
- ID
- 56337
- 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
- 41738
- Name
- HD4747B
- RA
- 12.362051
- DEC
- -23.21181
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 87.6010 | 87.7300 | 109.7000 | 109.8000 |
| A0-J2 | 123.9490 | 124.1700 | 85.7000 | 85.9000 |
| A0-K0 | 123.1890 | 123.3760 | 63.0070 | 63.2000 |
| G1-J2 | 56.5630 | 56.6240 | 46.6000 | 46.8000 |
| G1-K0 | 89.6930 | 89.7150 | 17.7160 | 17.9090 |
| J2-K0 | 48.6130 | 48.6160 | 343.4720 | 343.6080 |
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 | 60146.35064068 |
| 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 | 87.601 |
| HIERARCH ESO ISS PBL12 END | 87.73 |
| HIERARCH ESO ISS PBLA12 START | 109.7 |
| HIERARCH ESO ISS PBLA12 END | 109.8 |
| HIERARCH ESO ISS PBL13 START | 123.949 |
| HIERARCH ESO ISS PBL13 END | 124.17 |
| HIERARCH ESO ISS PBLA13 START | 85.7 |
| HIERARCH ESO ISS PBLA13 END | 85.9 |
| HIERARCH ESO ISS PBL14 START | 123.189 |
| HIERARCH ESO ISS PBL14 END | 123.376 |
| HIERARCH ESO ISS PBLA14 START | 63.007 |
| HIERARCH ESO ISS PBLA14 END | 63.2 |
| HIERARCH ESO ISS PBL23 START | 56.563 |
| HIERARCH ESO ISS PBL23 END | 56.624 |
| HIERARCH ESO ISS PBLA23 START | 46.6 |
| HIERARCH ESO ISS PBLA23 END | 46.8 |
| HIERARCH ESO ISS PBL24 START | 89.693 |
| HIERARCH ESO ISS PBL24 END | 89.715 |
| HIERARCH ESO ISS PBLA24 START | 17.716 |
| HIERARCH ESO ISS PBLA24 END | 17.909 |
| HIERARCH ESO ISS PBL34 START | 48.613 |
| HIERARCH ESO ISS PBL34 END | 48.616 |
| HIERARCH ESO ISS PBLA34 START | 343.472 |
| HIERARCH ESO ISS PBLA34 END | 343.608 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006538 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006553 |
| HIERARCH ESO ISS AMBI TEMP | 15.82 |
| HIERARCH ESO ISS AMBI FWHM START | 0.4 |
| HIERARCH ESO ISS AMBI FWHM END | 0.42 |
| HIERARCH ESO FT ROBJ NAME | HD_4747 |
| HIERARCH ESO FT ROBJ ALPHA | 004926.761 |
| HIERARCH ESO FT ROBJ DELTA | -231244.865 |