Exposure
- ID
- GRAVI.2025-04-18T07:25:00.462_1
- Header ID
- GRAVI.2025-04-18T07:25:00.462
- Date updated
- 2025-04-18 07:35:39 UTC+0000
- Release date
- 2026-04-18 07:35:39 UTC+0000
- UTC Start
- 2025-04-18 07:25:00.462
- UTC End
- 2025-04-18 07:27:40.462
- MJD Start
- 60783.30903313
- MJD End
- 60783.31088498185
- Exposure time (s)
- 160.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0025954999999999997
- Ambient temperature (°C)
- 13.36
- Seeing (arcsec)
- 1.22
Observation
- ID
- 66680
- 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
- 49599
- Name
- HIP_81208B
- RA
- 248.811028
- DEC
- -35.72466
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 55.8010 | 55.7600 | 25.7000 | 26.0000 |
| U1-U3 | 101.2680 | 101.1830 | 32.0000 | 32.4000 |
| U1-U4 | 129.8470 | 129.7570 | 59.9310 | 60.3280 |
| U2-U3 | 46.2300 | 46.1880 | 39.8000 | 40.1000 |
| U2-U4 | 89.4280 | 89.4180 | 80.4960 | 80.9150 |
| U3-U4 | 62.2100 | 62.2620 | 109.5100 | 109.9130 |
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 | 60783.30903313 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HIP 81208 |
| HIERARCH ESO INS SOBJ NAME | HIP_81208B |
| RA | 248.811028 |
| DEC | -35.72466 |
| 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 | 55.801 |
| HIERARCH ESO ISS PBL12 END | 55.76 |
| HIERARCH ESO ISS PBLA12 START | 25.7 |
| HIERARCH ESO ISS PBLA12 END | 26.0 |
| HIERARCH ESO ISS PBL13 START | 101.268 |
| HIERARCH ESO ISS PBL13 END | 101.183 |
| HIERARCH ESO ISS PBLA13 START | 32.0 |
| HIERARCH ESO ISS PBLA13 END | 32.4 |
| HIERARCH ESO ISS PBL14 START | 129.847 |
| HIERARCH ESO ISS PBL14 END | 129.757 |
| HIERARCH ESO ISS PBLA14 START | 59.931 |
| HIERARCH ESO ISS PBLA14 END | 60.328 |
| HIERARCH ESO ISS PBL23 START | 46.23 |
| HIERARCH ESO ISS PBL23 END | 46.188 |
| HIERARCH ESO ISS PBLA23 START | 39.8 |
| HIERARCH ESO ISS PBLA23 END | 40.1 |
| HIERARCH ESO ISS PBL24 START | 89.428 |
| HIERARCH ESO ISS PBL24 END | 89.418 |
| HIERARCH ESO ISS PBLA24 START | 80.496 |
| HIERARCH ESO ISS PBLA24 END | 80.915 |
| HIERARCH ESO ISS PBL34 START | 62.21 |
| HIERARCH ESO ISS PBL34 END | 62.262 |
| HIERARCH ESO ISS PBLA34 START | 109.51 |
| HIERARCH ESO ISS PBLA34 END | 109.913 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002253 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002938 |
| HIERARCH ESO ISS AMBI TEMP | 13.36 |
| HIERARCH ESO ISS AMBI FWHM START | 1.31 |
| HIERARCH ESO ISS AMBI FWHM END | 1.13 |
| HIERARCH ESO FT ROBJ NAME | HIP_81208 |
| HIERARCH ESO FT ROBJ ALPHA | 163513.839 |
| HIERARCH ESO FT ROBJ DELTA | -354328.725 |