Exposure
- ID
- GRAVI.2025-04-18T07:06:06.415_1
- Header ID
- GRAVI.2025-04-18T07:06:06.415
- Date updated
- 2025-04-18 07:15:39 UTC+0000
- Release date
- 2026-04-18 07:15:39 UTC+0000
- UTC Start
- 2025-04-18 07:06:06.415
- UTC End
- 2025-04-18 07:08:46.415
- MJD Start
- 60783.29590758
- MJD End
- 60783.29775943186
- Exposure time (s)
- 160.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0025475000000000003
- Ambient temperature (°C)
- 13.09
- Seeing (arcsec)
- 1.2349999999999999
Observation
- ID
- 66675
- 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
- 49594
- Name
- HIP_81208B
- RA
- 248.810994
- DEC
- -35.72469
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 56.0370 | 56.0050 | 23.4000 | 23.8000 |
| U1-U3 | 101.7390 | 101.6770 | 29.7000 | 30.1000 |
| U1-U4 | 130.1900 | 130.1660 | 57.2530 | 57.6660 |
| U2-U3 | 46.4470 | 46.4200 | 37.3000 | 37.7000 |
| U2-U4 | 89.2650 | 89.3140 | 77.7050 | 78.1320 |
| U3-U4 | 61.7210 | 61.8120 | 106.8890 | 107.2830 |
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 | 60783.29590758 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HIP 81208 |
| HIERARCH ESO INS SOBJ NAME | HIP_81208B |
| RA | 248.810994 |
| DEC | -35.72469 |
| 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 | 176.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 16 |
| HIERARCH ESO ISS PBL12 START | 56.037 |
| HIERARCH ESO ISS PBL12 END | 56.005 |
| HIERARCH ESO ISS PBLA12 START | 23.4 |
| HIERARCH ESO ISS PBLA12 END | 23.8 |
| HIERARCH ESO ISS PBL13 START | 101.739 |
| HIERARCH ESO ISS PBL13 END | 101.677 |
| HIERARCH ESO ISS PBLA13 START | 29.7 |
| HIERARCH ESO ISS PBLA13 END | 30.1 |
| HIERARCH ESO ISS PBL14 START | 130.19 |
| HIERARCH ESO ISS PBL14 END | 130.166 |
| HIERARCH ESO ISS PBLA14 START | 57.253 |
| HIERARCH ESO ISS PBLA14 END | 57.666 |
| HIERARCH ESO ISS PBL23 START | 46.447 |
| HIERARCH ESO ISS PBL23 END | 46.42 |
| HIERARCH ESO ISS PBLA23 START | 37.3 |
| HIERARCH ESO ISS PBLA23 END | 37.7 |
| HIERARCH ESO ISS PBL24 START | 89.265 |
| HIERARCH ESO ISS PBL24 END | 89.314 |
| HIERARCH ESO ISS PBLA24 START | 77.705 |
| HIERARCH ESO ISS PBLA24 END | 78.132 |
| HIERARCH ESO ISS PBL34 START | 61.721 |
| HIERARCH ESO ISS PBL34 END | 61.812 |
| HIERARCH ESO ISS PBLA34 START | 106.889 |
| HIERARCH ESO ISS PBLA34 END | 107.283 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002934 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002161 |
| HIERARCH ESO ISS AMBI TEMP | 13.09 |
| HIERARCH ESO ISS AMBI FWHM START | 1.03 |
| HIERARCH ESO ISS AMBI FWHM END | 1.44 |
| HIERARCH ESO FT ROBJ NAME | HIP_81208 |
| HIERARCH ESO FT ROBJ ALPHA | 163513.839 |
| HIERARCH ESO FT ROBJ DELTA | -354328.725 |