Exposure
- ID
- GRAVI.2025-11-07T07:15:09.111_2
- Header ID
- GRAVI.2025-11-07T07:15:09.111
- Date updated
- 2025-11-07 07:21:01 UTC+0000
- Release date
- 2026-11-07 07:21:01 UTC+0000
- UTC Start
- 2025-11-07 07:15:09.111
- UTC End
- 2025-11-07 07:15:37.911
- MJD Start
- 60986.30218878
- MJD End
- 60986.30252211333
- Exposure time (s)
- 28.8
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.001653
- Ambient temperature (°C)
- 7.78
- Seeing (arcsec)
- 1.395
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 | 54.2390 | 54.2140 | 31.7000 | 31.8000 |
| U1-U3 | 98.1670 | 98.1150 | 38.3000 | 38.4000 |
| U1-U4 | 125.9560 | 125.8680 | 67.4000 | 67.5120 |
| U2-U3 | 44.7280 | 44.7000 | 46.4000 | 46.4000 |
| U2-U4 | 87.8030 | 87.7540 | 88.5220 | 88.6500 |
| U3-U4 | 62.3590 | 62.3490 | 117.3060 | 117.4400 |
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 | 60986.30218878 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 31430 |
| HIERARCH ESO INS SOBJ NAME | HD_31430 |
| RA | 73.520064 |
| DEC | -38.16252 |
| 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 | 55.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 96 |
| HIERARCH ESO ISS PBL12 START | 54.239 |
| HIERARCH ESO ISS PBL12 END | 54.214 |
| HIERARCH ESO ISS PBLA12 START | 31.7 |
| HIERARCH ESO ISS PBLA12 END | 31.8 |
| HIERARCH ESO ISS PBL13 START | 98.167 |
| HIERARCH ESO ISS PBL13 END | 98.115 |
| HIERARCH ESO ISS PBLA13 START | 38.3 |
| HIERARCH ESO ISS PBLA13 END | 38.4 |
| HIERARCH ESO ISS PBL14 START | 125.956 |
| HIERARCH ESO ISS PBL14 END | 125.868 |
| HIERARCH ESO ISS PBLA14 START | 67.4 |
| HIERARCH ESO ISS PBLA14 END | 67.512 |
| HIERARCH ESO ISS PBL23 START | 44.728 |
| HIERARCH ESO ISS PBL23 END | 44.7 |
| HIERARCH ESO ISS PBLA23 START | 46.4 |
| HIERARCH ESO ISS PBLA23 END | 46.4 |
| HIERARCH ESO ISS PBL24 START | 87.803 |
| HIERARCH ESO ISS PBL24 END | 87.754 |
| HIERARCH ESO ISS PBLA24 START | 88.522 |
| HIERARCH ESO ISS PBLA24 END | 88.65 |
| HIERARCH ESO ISS PBL34 START | 62.359 |
| HIERARCH ESO ISS PBL34 END | 62.349 |
| HIERARCH ESO ISS PBLA34 START | 117.306 |
| HIERARCH ESO ISS PBLA34 END | 117.44 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001653 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.001653 |
| HIERARCH ESO ISS AMBI TEMP | 7.78 |
| HIERARCH ESO ISS AMBI FWHM START | 1.44 |
| HIERARCH ESO ISS AMBI FWHM END | 1.35 |
| HIERARCH ESO FT ROBJ NAME | HD_31430 |
| HIERARCH ESO FT ROBJ ALPHA | 045404.100 |
| HIERARCH ESO FT ROBJ DELTA | -380946.324 |