Exposure
- ID
- GRAVI.2024-04-28T07:12:20.676_2
- Header ID
- GRAVI.2024-04-28T07:12:20.676
- Date updated
- 2024-04-28 07:25:25 UTC+0000
- Release date
- 2025-04-28 07:25:25 UTC+0000
- UTC Start
- 2024-04-28 07:12:20.676
- UTC End
- 2024-04-28 07:15:00.676
- MJD Start
- 60428.3002393
- MJD End
- 60428.302091151854
- Exposure time (s)
- 160.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003915
- Ambient temperature (°C)
- 16.69
- Seeing (arcsec)
- 0.77
Observation
- ID
- 58988
- Category
- science
- Program ID
- 113.26A2.001
- Program Title
- ORBITAL AND SPECTRAL CHARACTERISATION OF A UNIQUE QUADRUPLE (OR QUINTUPLE?) SYSTEM
- Program Type
- Normal
- PI / COI
- VISWANATH / JANSON / LACOUR / SQUICCIARINI / CHOMEZ / DELORME / RINGQVIST / LAGRANGE / CHAUVIN / VIGAN
Target
- ID
- 43672
- Name
- HIP_81208
- RA
- 248.80766249999996
- DEC
- -35.724645833333334
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 | 55.3310 | 55.2730 | 28.8000 | 29.1000 |
| U1-U3 | 100.2820 | 100.1560 | 35.3000 | 35.6000 |
| U1-U4 | 128.5260 | 128.3290 | 63.6740 | 64.0520 |
| U2-U3 | 45.7320 | 45.6660 | 43.1000 | 43.4000 |
| U2-U4 | 88.9600 | 88.8620 | 84.5140 | 84.9280 |
| U3-U4 | 62.4710 | 62.4690 | 113.4730 | 113.8940 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.26A2.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60428.3002393 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HIP 81208 |
| HIERARCH ESO INS SOBJ NAME | HIP_81208_B |
| RA | 248.810395 |
| DEC | -35.72483 |
| 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 | 55.331 |
| HIERARCH ESO ISS PBL12 END | 55.273 |
| HIERARCH ESO ISS PBLA12 START | 28.8 |
| HIERARCH ESO ISS PBLA12 END | 29.1 |
| HIERARCH ESO ISS PBL13 START | 100.282 |
| HIERARCH ESO ISS PBL13 END | 100.156 |
| HIERARCH ESO ISS PBLA13 START | 35.3 |
| HIERARCH ESO ISS PBLA13 END | 35.6 |
| HIERARCH ESO ISS PBL14 START | 128.526 |
| HIERARCH ESO ISS PBL14 END | 128.329 |
| HIERARCH ESO ISS PBLA14 START | 63.674 |
| HIERARCH ESO ISS PBLA14 END | 64.052 |
| HIERARCH ESO ISS PBL23 START | 45.732 |
| HIERARCH ESO ISS PBL23 END | 45.666 |
| HIERARCH ESO ISS PBLA23 START | 43.1 |
| HIERARCH ESO ISS PBLA23 END | 43.4 |
| HIERARCH ESO ISS PBL24 START | 88.96 |
| HIERARCH ESO ISS PBL24 END | 88.862 |
| HIERARCH ESO ISS PBLA24 START | 84.514 |
| HIERARCH ESO ISS PBLA24 END | 84.928 |
| HIERARCH ESO ISS PBL34 START | 62.471 |
| HIERARCH ESO ISS PBL34 END | 62.469 |
| HIERARCH ESO ISS PBLA34 START | 113.473 |
| HIERARCH ESO ISS PBLA34 END | 113.894 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003706 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004124 |
| HIERARCH ESO ISS AMBI TEMP | 16.69 |
| HIERARCH ESO ISS AMBI FWHM START | 0.81 |
| HIERARCH ESO ISS AMBI FWHM END | 0.73 |
| HIERARCH ESO FT ROBJ NAME | HIP_81208 |
| HIERARCH ESO FT ROBJ ALPHA | 163513.839 |
| HIERARCH ESO FT ROBJ DELTA | -354328.725 |