Exposure
- ID
- GRAVI.2024-12-19T06:54:12.220_1
- Header ID
- GRAVI.2024-12-19T06:54:12.220
- Date updated
- 2024-12-19 07:10:32 UTC+0000
- Release date
- 2025-12-19 07:10:32 UTC+0000
- UTC Start
- 2024-12-19 06:54:12.220
- UTC End
- 2024-12-19 07:00:52.220
- MJD Start
- 60663.28764143
- MJD End
- 60663.292271059625
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008192999999999999
- Ambient temperature (°C)
- 13.93
- Seeing (arcsec)
- 0.685
Observation
- ID
- 62760
- 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
- 46691
- Name
- HD_42581_B
- RA
- 92.643208
- DEC
- -21.86937
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 55.4810 | 55.2950 | 35.1000 | 35.5000 |
| U1-U3 | 99.5060 | 99.0400 | 41.1000 | 41.4000 |
| U1-U4 | 120.1030 | 118.7440 | 69.1260 | 69.5250 |
| U2-U3 | 44.6980 | 44.4080 | 48.5000 | 48.8000 |
| U2-U4 | 80.3300 | 79.1990 | 91.8360 | 92.5120 |
| U3-U4 | 56.8130 | 56.2020 | 124.5130 | 125.5910 |
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 | 60663.28764143 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 42581 B |
| HIERARCH ESO INS SOBJ NAME | HD_42581_B |
| RA | 92.643208 |
| DEC | -21.86937 |
| 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 | 55.481 |
| HIERARCH ESO ISS PBL12 END | 55.295 |
| HIERARCH ESO ISS PBLA12 START | 35.1 |
| HIERARCH ESO ISS PBLA12 END | 35.5 |
| HIERARCH ESO ISS PBL13 START | 99.506 |
| HIERARCH ESO ISS PBL13 END | 99.04 |
| HIERARCH ESO ISS PBLA13 START | 41.1 |
| HIERARCH ESO ISS PBLA13 END | 41.4 |
| HIERARCH ESO ISS PBL14 START | 120.103 |
| HIERARCH ESO ISS PBL14 END | 118.744 |
| HIERARCH ESO ISS PBLA14 START | 69.126 |
| HIERARCH ESO ISS PBLA14 END | 69.525 |
| HIERARCH ESO ISS PBL23 START | 44.698 |
| HIERARCH ESO ISS PBL23 END | 44.408 |
| HIERARCH ESO ISS PBLA23 START | 48.5 |
| HIERARCH ESO ISS PBLA23 END | 48.8 |
| HIERARCH ESO ISS PBL24 START | 80.33 |
| HIERARCH ESO ISS PBL24 END | 79.199 |
| HIERARCH ESO ISS PBLA24 START | 91.836 |
| HIERARCH ESO ISS PBLA24 END | 92.512 |
| HIERARCH ESO ISS PBL34 START | 56.813 |
| HIERARCH ESO ISS PBL34 END | 56.202 |
| HIERARCH ESO ISS PBLA34 START | 124.513 |
| HIERARCH ESO ISS PBLA34 END | 125.591 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008411 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007975 |
| HIERARCH ESO ISS AMBI TEMP | 13.93 |
| HIERARCH ESO ISS AMBI FWHM START | 0.68 |
| HIERARCH ESO ISS AMBI FWHM END | 0.69 |
| HIERARCH ESO FT ROBJ NAME | HD_42581 |
| HIERARCH ESO FT ROBJ ALPHA | 061034.615 |
| HIERARCH ESO FT ROBJ DELTA | -215152.656 |