Exposure
- ID
- GRAVI.2023-12-30T06:11:23.077_2
- Header ID
- GRAVI.2023-12-30T06:11:23.077
- Date updated
- 2023-12-30 06:25:50 UTC+0000
- Release date
- 2024-12-30 06:25:50 UTC+0000
- UTC Start
- 2023-12-30 06:11:23.077
- UTC End
- 2023-12-30 06:18:03.077
- MJD Start
- 60308.25790598
- MJD End
- 60308.2625356096
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0084065
- Ambient temperature (°C)
- 13.75
- Seeing (arcsec)
- 0.495
Observation
- ID
- 58063
- 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
- 43000
- Name
- HD_42581
- RA
- 92.6442291666667
- DEC
- -21.8646266666667
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- U1 U2 U3 U4
Projected baselines
Baseline | Length start | Length end | Angle start | Angle end |
---|---|---|---|---|
U1-U2 | 55.5470 | 55.3670 | 35.0000 | 35.4000 |
U1-U3 | 99.6750 | 99.2210 | 41.0000 | 41.3000 |
U1-U4 | 120.6010 | 119.2680 | 68.9700 | 69.3760 |
U2-U3 | 44.8030 | 44.5200 | 48.4000 | 48.7000 |
U2-U4 | 80.7470 | 79.6340 | 91.5810 | 92.2550 |
U3-U4 | 57.0410 | 56.4360 | 124.1100 | 125.1790 |
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 | 60308.25790598 |
HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
HIERARCH ESO OBS TARG NAME | HD 42581 B |
HIERARCH ESO INS SOBJ NAME | HD_42581_B |
RA | 92.643501 |
DEC | -21.86884 |
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 | 55.547 |
HIERARCH ESO ISS PBL12 END | 55.367 |
HIERARCH ESO ISS PBLA12 START | 35.0 |
HIERARCH ESO ISS PBLA12 END | 35.4 |
HIERARCH ESO ISS PBL13 START | 99.675 |
HIERARCH ESO ISS PBL13 END | 99.221 |
HIERARCH ESO ISS PBLA13 START | 41.0 |
HIERARCH ESO ISS PBLA13 END | 41.3 |
HIERARCH ESO ISS PBL14 START | 120.601 |
HIERARCH ESO ISS PBL14 END | 119.268 |
HIERARCH ESO ISS PBLA14 START | 68.97 |
HIERARCH ESO ISS PBLA14 END | 69.376 |
HIERARCH ESO ISS PBL23 START | 44.803 |
HIERARCH ESO ISS PBL23 END | 44.52 |
HIERARCH ESO ISS PBLA23 START | 48.4 |
HIERARCH ESO ISS PBLA23 END | 48.7 |
HIERARCH ESO ISS PBL24 START | 80.747 |
HIERARCH ESO ISS PBL24 END | 79.634 |
HIERARCH ESO ISS PBLA24 START | 91.581 |
HIERARCH ESO ISS PBLA24 END | 92.255 |
HIERARCH ESO ISS PBL34 START | 57.041 |
HIERARCH ESO ISS PBL34 END | 56.436 |
HIERARCH ESO ISS PBLA34 START | 124.11 |
HIERARCH ESO ISS PBLA34 END | 125.179 |
HIERARCH ESO ISS AMBI TAU0 START | 0.010012 |
HIERARCH ESO ISS AMBI TAU0 END | 0.006801 |
HIERARCH ESO ISS AMBI TEMP | 13.75 |
HIERARCH ESO ISS AMBI FWHM START | 0.39 |
HIERARCH ESO ISS AMBI FWHM END | 0.6 |
HIERARCH ESO FT ROBJ NAME | HD_42581 |
HIERARCH ESO FT ROBJ ALPHA | 061034.615 |
HIERARCH ESO FT ROBJ DELTA | -215152.656 |