Exposure
- ID
- GRAVI.2025-11-08T09:07:07.145_2
- Header ID
- GRAVI.2025-11-08T09:07:07.145
- Date updated
- 2025-11-08 09:16:01 UTC+0000
- Release date
- 2026-11-08 09:16:00 UTC+0000
- UTC Start
- 2025-11-08 09:07:07.145
- UTC End
- 2025-11-08 09:08:31.145
- MJD Start
- 60987.37994381
- MJD End
- 60987.38091603223
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0041860000000000005
- Ambient temperature (°C)
- 12.16
- Seeing (arcsec)
- 0.845
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 | 48.8580 | 48.7430 | 41.9000 | 42.0000 |
| U1-U3 | 86.4600 | 86.2110 | 48.9000 | 49.0000 |
| U1-U4 | 104.4080 | 103.9440 | 82.7030 | 82.9400 |
| U2-U3 | 38.4240 | 38.2900 | 57.8000 | 57.9000 |
| U2-U4 | 74.6060 | 74.3240 | 108.0390 | 108.3800 |
| U3-U4 | 58.1340 | 58.0430 | 138.5990 | 138.9710 |
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 | 60987.37994381 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 31430 |
| HIERARCH ESO INS SOBJ NAME | HD_31430 |
| RA | 73.519788 |
| DEC | -38.16323 |
| 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 | 109.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 84 |
| HIERARCH ESO ISS PBL12 START | 48.858 |
| HIERARCH ESO ISS PBL12 END | 48.743 |
| HIERARCH ESO ISS PBLA12 START | 41.9 |
| HIERARCH ESO ISS PBLA12 END | 42.0 |
| HIERARCH ESO ISS PBL13 START | 86.46 |
| HIERARCH ESO ISS PBL13 END | 86.211 |
| HIERARCH ESO ISS PBLA13 START | 48.9 |
| HIERARCH ESO ISS PBLA13 END | 49.0 |
| HIERARCH ESO ISS PBL14 START | 104.408 |
| HIERARCH ESO ISS PBL14 END | 103.944 |
| HIERARCH ESO ISS PBLA14 START | 82.703 |
| HIERARCH ESO ISS PBLA14 END | 82.94 |
| HIERARCH ESO ISS PBL23 START | 38.424 |
| HIERARCH ESO ISS PBL23 END | 38.29 |
| HIERARCH ESO ISS PBLA23 START | 57.8 |
| HIERARCH ESO ISS PBLA23 END | 57.9 |
| HIERARCH ESO ISS PBL24 START | 74.606 |
| HIERARCH ESO ISS PBL24 END | 74.324 |
| HIERARCH ESO ISS PBLA24 START | 108.039 |
| HIERARCH ESO ISS PBLA24 END | 108.38 |
| HIERARCH ESO ISS PBL34 START | 58.134 |
| HIERARCH ESO ISS PBL34 END | 58.043 |
| HIERARCH ESO ISS PBLA34 START | 138.599 |
| HIERARCH ESO ISS PBLA34 END | 138.971 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003718 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004654 |
| HIERARCH ESO ISS AMBI TEMP | 12.16 |
| HIERARCH ESO ISS AMBI FWHM START | 0.93 |
| HIERARCH ESO ISS AMBI FWHM END | 0.76 |
| HIERARCH ESO FT ROBJ NAME | HD_31430 |
| HIERARCH ESO FT ROBJ ALPHA | 045404.100 |
| HIERARCH ESO FT ROBJ DELTA | -380946.324 |