Exposure
- ID
- GRAVI.2024-03-29T01:10:37.994_1
- Header ID
- GRAVI.2024-03-29T01:10:37.994
- Date updated
- 2024-03-29 01:30:30 UTC+0000
- Release date
- 2025-03-29 01:30:30 UTC+0000
- UTC Start
- 2024-03-29 01:10:37.994
- UTC End
- 2024-03-29 01:17:17.994
- MJD Start
- 60398.04905086
- MJD End
- 60398.0536804896
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0102865
- Ambient temperature (°C)
- 14.23
- Seeing (arcsec)
- 0.57
Observation
- ID
- 58867
- 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
- 43584
- Name
- HD_42581_B
- RA
- 92.643257
- DEC
- -21.86871
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 53.7380 | 53.4290 | 37.4000 | 37.6000 |
| U1-U3 | 95.2280 | 94.4870 | 43.0000 | 43.2000 |
| U1-U4 | 108.2100 | 106.2420 | 71.7400 | 72.0420 |
| U2-U3 | 42.0880 | 41.6440 | 50.3000 | 50.4000 |
| U2-U4 | 70.6850 | 69.1360 | 97.1460 | 97.9600 |
| U3-U4 | 51.9600 | 51.2510 | 133.3760 | 134.7840 |
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 | 60398.04905086 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 42581 B |
| HIERARCH ESO INS SOBJ NAME | HD_42581_B |
| RA | 92.643257 |
| DEC | -21.86871 |
| 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 | 53.738 |
| HIERARCH ESO ISS PBL12 END | 53.429 |
| HIERARCH ESO ISS PBLA12 START | 37.4 |
| HIERARCH ESO ISS PBLA12 END | 37.6 |
| HIERARCH ESO ISS PBL13 START | 95.228 |
| HIERARCH ESO ISS PBL13 END | 94.487 |
| HIERARCH ESO ISS PBLA13 START | 43.0 |
| HIERARCH ESO ISS PBLA13 END | 43.2 |
| HIERARCH ESO ISS PBL14 START | 108.21 |
| HIERARCH ESO ISS PBL14 END | 106.242 |
| HIERARCH ESO ISS PBLA14 START | 71.74 |
| HIERARCH ESO ISS PBLA14 END | 72.042 |
| HIERARCH ESO ISS PBL23 START | 42.088 |
| HIERARCH ESO ISS PBL23 END | 41.644 |
| HIERARCH ESO ISS PBLA23 START | 50.3 |
| HIERARCH ESO ISS PBLA23 END | 50.4 |
| HIERARCH ESO ISS PBL24 START | 70.685 |
| HIERARCH ESO ISS PBL24 END | 69.136 |
| HIERARCH ESO ISS PBLA24 START | 97.146 |
| HIERARCH ESO ISS PBLA24 END | 97.96 |
| HIERARCH ESO ISS PBL34 START | 51.96 |
| HIERARCH ESO ISS PBL34 END | 51.251 |
| HIERARCH ESO ISS PBLA34 START | 133.376 |
| HIERARCH ESO ISS PBLA34 END | 134.784 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.009026 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.011547 |
| HIERARCH ESO ISS AMBI TEMP | 14.23 |
| HIERARCH ESO ISS AMBI FWHM START | 0.57 |
| HIERARCH ESO ISS AMBI FWHM END | 0.57 |
| HIERARCH ESO FT ROBJ NAME | HD_42581 |
| HIERARCH ESO FT ROBJ ALPHA | 061034.615 |
| HIERARCH ESO FT ROBJ DELTA | -215152.656 |