Exposure
- ID
- GRAVI.2024-12-19T07:27:24.305_1
- Header ID
- GRAVI.2024-12-19T07:27:24.305
- Date updated
- 2024-12-19 07:40:39 UTC+0000
- Release date
- 2025-12-19 07:40:39 UTC+0000
- UTC Start
- 2024-12-19 07:27:24.305
- UTC End
- 2024-12-19 07:34:04.305
- MJD Start
- 60663.31069797
- MJD End
- 60663.31532759963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0073045
- Ambient temperature (°C)
- 13.52
- Seeing (arcsec)
- 0.795
Observation
- ID
- 62763
- 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
- 46694
- Name
- HD_42581_B
- RA
- 92.643199
- DEC
- -21.86936
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 54.4360 | 54.1720 | 36.7000 | 37.0000 |
| U1-U3 | 96.9180 | 96.2750 | 42.5000 | 42.7000 |
| U1-U4 | 112.7800 | 111.0250 | 70.9250 | 71.2590 |
| U2-U3 | 43.1070 | 42.7180 | 49.8000 | 50.0000 |
| U2-U4 | 74.3290 | 72.9210 | 95.2190 | 95.9670 |
| U3-U4 | 53.7020 | 53.0160 | 130.0770 | 131.3520 |
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 | 60663.31069797 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 42581 B |
| HIERARCH ESO INS SOBJ NAME | HD_42581_B |
| RA | 92.643199 |
| DEC | -21.86936 |
| 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 | 54.436 |
| HIERARCH ESO ISS PBL12 END | 54.172 |
| HIERARCH ESO ISS PBLA12 START | 36.7 |
| HIERARCH ESO ISS PBLA12 END | 37.0 |
| HIERARCH ESO ISS PBL13 START | 96.918 |
| HIERARCH ESO ISS PBL13 END | 96.275 |
| HIERARCH ESO ISS PBLA13 START | 42.5 |
| HIERARCH ESO ISS PBLA13 END | 42.7 |
| HIERARCH ESO ISS PBL14 START | 112.78 |
| HIERARCH ESO ISS PBL14 END | 111.025 |
| HIERARCH ESO ISS PBLA14 START | 70.925 |
| HIERARCH ESO ISS PBLA14 END | 71.259 |
| HIERARCH ESO ISS PBL23 START | 43.107 |
| HIERARCH ESO ISS PBL23 END | 42.718 |
| HIERARCH ESO ISS PBLA23 START | 49.8 |
| HIERARCH ESO ISS PBLA23 END | 50.0 |
| HIERARCH ESO ISS PBL24 START | 74.329 |
| HIERARCH ESO ISS PBL24 END | 72.921 |
| HIERARCH ESO ISS PBLA24 START | 95.219 |
| HIERARCH ESO ISS PBLA24 END | 95.967 |
| HIERARCH ESO ISS PBL34 START | 53.702 |
| HIERARCH ESO ISS PBL34 END | 53.016 |
| HIERARCH ESO ISS PBLA34 START | 130.077 |
| HIERARCH ESO ISS PBLA34 END | 131.352 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007354 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007255 |
| HIERARCH ESO ISS AMBI TEMP | 13.52 |
| HIERARCH ESO ISS AMBI FWHM START | 0.78 |
| HIERARCH ESO ISS AMBI FWHM END | 0.81 |
| HIERARCH ESO FT ROBJ NAME | HD_42581 |
| HIERARCH ESO FT ROBJ ALPHA | 061034.615 |
| HIERARCH ESO FT ROBJ DELTA | -215152.656 |