Exposure
- ID
- GRAVI.2024-03-29T00:48:43.938_1
- Header ID
- GRAVI.2024-03-29T00:48:43.938
- Date updated
- 2024-03-29 01:05:28 UTC+0000
- Release date
- 2025-03-29 01:05:28 UTC+0000
- UTC Start
- 2024-03-29 00:48:43.938
- UTC End
- 2024-03-29 00:55:23.938
- MJD Start
- 60398.03384188
- MJD End
- 60398.0384715096
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0099805
- Ambient temperature (°C)
- 14.12
- Seeing (arcsec)
- 0.535
Observation
- ID
- 58867
- Category
- science
- Program ID
- 112.26Z1.001
- Program Title
- RESOLVING THE FIRST T DWARF COMPANION AS A TIGHT BROWN DWARF BINARY
- Program Type
- ToO
- PI / COI
- XUAN/ LACOUR/ WANG/ MAWET/ RICKMAN/ BRANDNER/ ZHANG/ MÉRAND/ WINTERHALDER/ SPEZZANO/ JANSON/ HINKLEY/ KRAL/ KAMMERER/ BALMER/ BOURDAROT/ RUFFIO/ OTTEN
Target
- ID
- 43584
- Name
- HD_42581_B
- RA
- 92.643257
- DEC
- -21.86871
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 54.6040 | 54.3500 | 36.5000 | 36.8000 |
| U1-U3 | 97.3290 | 96.7080 | 42.4000 | 42.6000 |
| U1-U4 | 113.9150 | 112.2060 | 70.6940 | 71.0380 |
| U2-U3 | 43.3570 | 42.9800 | 49.7000 | 49.9000 |
| U2-U4 | 75.2460 | 73.8690 | 94.7270 | 95.4660 |
| U3-U4 | 54.1580 | 53.4770 | 129.2440 | 130.4950 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 112.26Z1.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60398.03384188 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 42581 B |
| HIERARCH ESO INS SOBJ NAME | HD_42581_B |
| RA | 92.643257 |
| DEC | -21.86871 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | COMBINED |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | U1 |
| HIERARCH ESO ISS CONF STATION2 | U2 |
| HIERARCH ESO ISS CONF STATION3 | U3 |
| HIERARCH ESO ISS CONF STATION4 | U4 |
| EXPTIME | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 54.604 |
| HIERARCH ESO ISS PBL12 END | 54.35 |
| HIERARCH ESO ISS PBLA12 START | 36.5 |
| HIERARCH ESO ISS PBLA12 END | 36.8 |
| HIERARCH ESO ISS PBL13 START | 97.329 |
| HIERARCH ESO ISS PBL13 END | 96.708 |
| HIERARCH ESO ISS PBLA13 START | 42.4 |
| HIERARCH ESO ISS PBLA13 END | 42.6 |
| HIERARCH ESO ISS PBL14 START | 113.915 |
| HIERARCH ESO ISS PBL14 END | 112.206 |
| HIERARCH ESO ISS PBLA14 START | 70.694 |
| HIERARCH ESO ISS PBLA14 END | 71.038 |
| HIERARCH ESO ISS PBL23 START | 43.357 |
| HIERARCH ESO ISS PBL23 END | 42.98 |
| HIERARCH ESO ISS PBLA23 START | 49.7 |
| HIERARCH ESO ISS PBLA23 END | 49.9 |
| HIERARCH ESO ISS PBL24 START | 75.246 |
| HIERARCH ESO ISS PBL24 END | 73.869 |
| HIERARCH ESO ISS PBLA24 START | 94.727 |
| HIERARCH ESO ISS PBLA24 END | 95.466 |
| HIERARCH ESO ISS PBL34 START | 54.158 |
| HIERARCH ESO ISS PBL34 END | 53.477 |
| HIERARCH ESO ISS PBLA34 START | 129.244 |
| HIERARCH ESO ISS PBLA34 END | 130.495 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.009323 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.010638 |
| HIERARCH ESO ISS AMBI TEMP | 14.12 |
| HIERARCH ESO ISS AMBI FWHM START | 0.58 |
| HIERARCH ESO ISS AMBI FWHM END | 0.49 |
| HIERARCH ESO FT ROBJ NAME | HD_42581 |
| HIERARCH ESO FT ROBJ ALPHA | 061034.615 |
| HIERARCH ESO FT ROBJ DELTA | -215152.656 |