Exposure
- ID
- GRAVI.2025-11-07T08:22:30.281_2
- Header ID
- GRAVI.2025-11-07T08:22:30.281
- Date updated
- 2025-11-07 08:35:44 UTC+0000
- Release date
- 2026-11-07 08:35:44 UTC+0000
- UTC Start
- 2025-11-07 08:22:30.281
- UTC End
- 2025-11-07 08:25:18.281
- MJD Start
- 60986.34896159
- MJD End
- 60986.35090603445
- Exposure time (s)
- 168.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0014245
- Ambient temperature (°C)
- 8.1
- Seeing (arcsec)
- 2.545
Observation
- ID
- 71202
- Category
- science
- Program ID
- 116.29H7.001
- Program Title
- GPAO COMMISSIONING
- Program Type
- Normal
- PI / COI
- TEAM
Target
- ID
- 52869
- Name
- HD_31430
- RA
- 73.51708333333333
- DEC
- -38.16286777777778
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 | 51.6330 | 51.4690 | 38.1000 | 38.4000 |
| U1-U3 | 92.5040 | 92.1470 | 45.0000 | 45.3000 |
| U1-U4 | 115.7110 | 115.0450 | 76.2740 | 76.7050 |
| U2-U3 | 41.6910 | 41.4990 | 53.4000 | 53.7000 |
| U2-U4 | 81.5860 | 81.1710 | 99.2750 | 99.8350 |
| U3-U4 | 60.4630 | 60.3220 | 128.9250 | 129.5440 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 116.29H7.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60986.34896159 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 31430 |
| HIERARCH ESO INS SOBJ NAME | HD_31430 |
| RA | 73.519927 |
| DEC | -38.16256 |
| 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 | 204.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 168 |
| HIERARCH ESO ISS PBL12 START | 51.633 |
| HIERARCH ESO ISS PBL12 END | 51.469 |
| HIERARCH ESO ISS PBLA12 START | 38.1 |
| HIERARCH ESO ISS PBLA12 END | 38.4 |
| HIERARCH ESO ISS PBL13 START | 92.504 |
| HIERARCH ESO ISS PBL13 END | 92.147 |
| HIERARCH ESO ISS PBLA13 START | 45.0 |
| HIERARCH ESO ISS PBLA13 END | 45.3 |
| HIERARCH ESO ISS PBL14 START | 115.711 |
| HIERARCH ESO ISS PBL14 END | 115.045 |
| HIERARCH ESO ISS PBLA14 START | 76.274 |
| HIERARCH ESO ISS PBLA14 END | 76.705 |
| HIERARCH ESO ISS PBL23 START | 41.691 |
| HIERARCH ESO ISS PBL23 END | 41.499 |
| HIERARCH ESO ISS PBLA23 START | 53.4 |
| HIERARCH ESO ISS PBLA23 END | 53.7 |
| HIERARCH ESO ISS PBL24 START | 81.586 |
| HIERARCH ESO ISS PBL24 END | 81.171 |
| HIERARCH ESO ISS PBLA24 START | 99.275 |
| HIERARCH ESO ISS PBLA24 END | 99.835 |
| HIERARCH ESO ISS PBL34 START | 60.463 |
| HIERARCH ESO ISS PBL34 END | 60.322 |
| HIERARCH ESO ISS PBLA34 START | 128.925 |
| HIERARCH ESO ISS PBLA34 END | 129.544 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001381 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.001468 |
| HIERARCH ESO ISS AMBI TEMP | 8.1 |
| HIERARCH ESO ISS AMBI FWHM START | 2.46 |
| HIERARCH ESO ISS AMBI FWHM END | 2.63 |
| HIERARCH ESO FT ROBJ NAME | HD_31430 |
| HIERARCH ESO FT ROBJ ALPHA | 045404.100 |
| HIERARCH ESO FT ROBJ DELTA | -380946.324 |