Exposure
- ID
- GRAVI.2024-02-28T03:29:49.673_1
- Header ID
- GRAVI.2024-02-28T03:29:49.673
- Date updated
- 2024-02-28 03:45:26 UTC+0000
- Release date
- 2025-02-28 03:45:26 UTC+0000
- UTC Start
- 2024-02-28 03:29:49.673
- UTC End
- 2024-02-28 03:36:29.673
- MJD Start
- 60368.14571381
- MJD End
- 60368.1503434396
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006227
- Ambient temperature (°C)
- 16.16
- Seeing (arcsec)
- 0.745
Observation
- ID
- 58535
- 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
- 43334
- Name
- HD_42581_B
- RA
- 92.64375
- DEC
- -21.86905
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 52.7340 | 52.3730 | 38.0000 | 38.1000 |
| U1-U3 | 92.8320 | 91.9800 | 43.5000 | 43.6000 |
| U1-U4 | 101.9080 | 99.7040 | 72.6220 | 72.8770 |
| U2-U3 | 40.6590 | 40.1540 | 50.6000 | 50.7000 |
| U2-U4 | 65.7630 | 64.0680 | 99.7450 | 100.6590 |
| U3-U4 | 49.7750 | 49.0680 | 137.8760 | 139.4520 |
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 | 60368.14571381 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 42581 B |
| HIERARCH ESO INS SOBJ NAME | HD_42581_B |
| RA | 92.64375 |
| DEC | -21.86905 |
| 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 | 52.734 |
| HIERARCH ESO ISS PBL12 END | 52.373 |
| HIERARCH ESO ISS PBLA12 START | 38.0 |
| HIERARCH ESO ISS PBLA12 END | 38.1 |
| HIERARCH ESO ISS PBL13 START | 92.832 |
| HIERARCH ESO ISS PBL13 END | 91.98 |
| HIERARCH ESO ISS PBLA13 START | 43.5 |
| HIERARCH ESO ISS PBLA13 END | 43.6 |
| HIERARCH ESO ISS PBL14 START | 101.908 |
| HIERARCH ESO ISS PBL14 END | 99.704 |
| HIERARCH ESO ISS PBLA14 START | 72.622 |
| HIERARCH ESO ISS PBLA14 END | 72.877 |
| HIERARCH ESO ISS PBL23 START | 40.659 |
| HIERARCH ESO ISS PBL23 END | 40.154 |
| HIERARCH ESO ISS PBLA23 START | 50.6 |
| HIERARCH ESO ISS PBLA23 END | 50.7 |
| HIERARCH ESO ISS PBL24 START | 65.763 |
| HIERARCH ESO ISS PBL24 END | 64.068 |
| HIERARCH ESO ISS PBLA24 START | 99.745 |
| HIERARCH ESO ISS PBLA24 END | 100.659 |
| HIERARCH ESO ISS PBL34 START | 49.775 |
| HIERARCH ESO ISS PBL34 END | 49.068 |
| HIERARCH ESO ISS PBLA34 START | 137.876 |
| HIERARCH ESO ISS PBLA34 END | 139.452 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006579 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005875 |
| HIERARCH ESO ISS AMBI TEMP | 16.16 |
| HIERARCH ESO ISS AMBI FWHM START | 0.65 |
| HIERARCH ESO ISS AMBI FWHM END | 0.84 |
| HIERARCH ESO FT ROBJ NAME | HD_42581 |
| HIERARCH ESO FT ROBJ ALPHA | 061034.615 |
| HIERARCH ESO FT ROBJ DELTA | -215152.656 |