Exposure
- ID
- GRAVI.2025-04-18T07:19:18.448_1
- Header ID
- GRAVI.2025-04-18T07:19:18.448
- Date updated
- 2025-04-18 07:25:41 UTC+0000
- Release date
- 2026-04-18 07:25:41 UTC+0000
- UTC Start
- 2025-04-18 07:19:18.448
- UTC End
- 2025-04-18 07:20:54.448
- MJD Start
- 60783.30507463
- MJD End
- 60783.30618574111
- Exposure time (s)
- 96.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002634
- Ambient temperature (°C)
- 13.17
- Seeing (arcsec)
- 1.275
Observation
- ID
- 66678
- Category
- science
- Program ID
- 115.285X.001
- Program Title
- ORBITAL AND SPECTRAL CHARACTERISATION OF A UNIQUE QUADRUPLE (OR QUINTUPLE?) SYSTEM
- Program Type
- Normal
- PI / COI
- VISWANATH / JANSON / LACOUR / SQUICCIARINI / CHOMEZ / DELORME / LAGRANGE / CHAUVIN / VIGAN
Target
- ID
- 49597
- Name
- HIP_81208B
- RA
- 248.810993
- DEC
- -35.72467
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 55.8790 | 55.8540 | 25.0000 | 25.2000 |
| U1-U3 | 101.4260 | 101.3770 | 31.4000 | 31.6000 |
| U1-U4 | 129.9970 | 129.9530 | 59.1350 | 59.3920 |
| U2-U3 | 46.3050 | 46.2820 | 39.0000 | 39.3000 |
| U2-U4 | 89.4190 | 89.4260 | 79.6600 | 79.9290 |
| U3-U4 | 62.0900 | 62.1310 | 108.7130 | 108.9690 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.285X.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60783.30507463 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HIP 81208 |
| HIERARCH ESO INS SOBJ NAME | HIP_81208B |
| RA | 248.810993 |
| DEC | -35.72467 |
| 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 | 114.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 3.0 |
| HIERARCH ESO DET2 NDIT | 32 |
| HIERARCH ESO ISS PBL12 START | 55.879 |
| HIERARCH ESO ISS PBL12 END | 55.854 |
| HIERARCH ESO ISS PBLA12 START | 25.0 |
| HIERARCH ESO ISS PBLA12 END | 25.2 |
| HIERARCH ESO ISS PBL13 START | 101.426 |
| HIERARCH ESO ISS PBL13 END | 101.377 |
| HIERARCH ESO ISS PBLA13 START | 31.4 |
| HIERARCH ESO ISS PBLA13 END | 31.6 |
| HIERARCH ESO ISS PBL14 START | 129.997 |
| HIERARCH ESO ISS PBL14 END | 129.953 |
| HIERARCH ESO ISS PBLA14 START | 59.135 |
| HIERARCH ESO ISS PBLA14 END | 59.392 |
| HIERARCH ESO ISS PBL23 START | 46.305 |
| HIERARCH ESO ISS PBL23 END | 46.282 |
| HIERARCH ESO ISS PBLA23 START | 39.0 |
| HIERARCH ESO ISS PBLA23 END | 39.3 |
| HIERARCH ESO ISS PBL24 START | 89.419 |
| HIERARCH ESO ISS PBL24 END | 89.426 |
| HIERARCH ESO ISS PBLA24 START | 79.66 |
| HIERARCH ESO ISS PBLA24 END | 79.929 |
| HIERARCH ESO ISS PBL34 START | 62.09 |
| HIERARCH ESO ISS PBL34 END | 62.131 |
| HIERARCH ESO ISS PBLA34 START | 108.713 |
| HIERARCH ESO ISS PBLA34 END | 108.969 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002217 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003051 |
| HIERARCH ESO ISS AMBI TEMP | 13.17 |
| HIERARCH ESO ISS AMBI FWHM START | 1.46 |
| HIERARCH ESO ISS AMBI FWHM END | 1.09 |
| HIERARCH ESO FT ROBJ NAME | HIP_81208 |
| HIERARCH ESO FT ROBJ ALPHA | 163513.839 |
| HIERARCH ESO FT ROBJ DELTA | -354328.725 |