Exposure
- ID
- GRAVI.2023-12-26T06:41:39.018_1
- Header ID
- GRAVI.2023-12-26T06:41:39.018
- Date updated
- 2023-12-26 06:55:41 UTC+0000
- Release date
- 2024-12-26 06:55:41 UTC+0000
- UTC Start
- 2023-12-26 06:41:39.018
- UTC End
- 2023-12-26 06:48:19.018
- MJD Start
- 60304.27892382
- MJD End
- 60304.2835534496
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0083095
- Ambient temperature (°C)
- 16.8
- Seeing (arcsec)
- 0.755
Observation
- ID
- 58062
- Category
- science
- Program ID
- 112.25RU.001
- Program Title
- IS THE FIRST T DWARF COMPANION A BROWN DWARF BINARY?
- Program Type
- Normal
- PI / COI
- XUAN/ WANG/ LACOUR/ RUFFIO/ ZHANG/ BRANDNER/ MAWET/ RICKMAN
Target
- ID
- 42999
- Name
- HD_42581_B
- RA
- 92.643198
- DEC
- -21.86886
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 55.1510 | 54.9360 | 35.8000 | 36.1000 |
| U1-U3 | 98.6800 | 98.1470 | 41.7000 | 42.0000 |
| U1-U4 | 117.7080 | 116.1950 | 69.8050 | 70.1820 |
| U2-U3 | 44.1850 | 43.8570 | 49.0000 | 49.3000 |
| U2-U4 | 78.3420 | 77.1000 | 93.0080 | 93.7090 |
| U3-U4 | 55.7480 | 55.1000 | 126.3950 | 127.5470 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 112.25RU.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60304.27892382 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 42581 B |
| HIERARCH ESO INS SOBJ NAME | HD_42581_B |
| RA | 92.643198 |
| DEC | -21.86886 |
| 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 | 55.151 |
| HIERARCH ESO ISS PBL12 END | 54.936 |
| HIERARCH ESO ISS PBLA12 START | 35.8 |
| HIERARCH ESO ISS PBLA12 END | 36.1 |
| HIERARCH ESO ISS PBL13 START | 98.68 |
| HIERARCH ESO ISS PBL13 END | 98.147 |
| HIERARCH ESO ISS PBLA13 START | 41.7 |
| HIERARCH ESO ISS PBLA13 END | 42.0 |
| HIERARCH ESO ISS PBL14 START | 117.708 |
| HIERARCH ESO ISS PBL14 END | 116.195 |
| HIERARCH ESO ISS PBLA14 START | 69.805 |
| HIERARCH ESO ISS PBLA14 END | 70.182 |
| HIERARCH ESO ISS PBL23 START | 44.185 |
| HIERARCH ESO ISS PBL23 END | 43.857 |
| HIERARCH ESO ISS PBLA23 START | 49.0 |
| HIERARCH ESO ISS PBLA23 END | 49.3 |
| HIERARCH ESO ISS PBL24 START | 78.342 |
| HIERARCH ESO ISS PBL24 END | 77.1 |
| HIERARCH ESO ISS PBLA24 START | 93.008 |
| HIERARCH ESO ISS PBLA24 END | 93.709 |
| HIERARCH ESO ISS PBL34 START | 55.748 |
| HIERARCH ESO ISS PBL34 END | 55.1 |
| HIERARCH ESO ISS PBLA34 START | 126.395 |
| HIERARCH ESO ISS PBLA34 END | 127.547 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.009129 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00749 |
| HIERARCH ESO ISS AMBI TEMP | 16.8 |
| HIERARCH ESO ISS AMBI FWHM START | 0.73 |
| HIERARCH ESO ISS AMBI FWHM END | 0.78 |
| HIERARCH ESO FT ROBJ NAME | HD_42581 |
| HIERARCH ESO FT ROBJ ALPHA | 061034.615 |
| HIERARCH ESO FT ROBJ DELTA | -215152.656 |