Exposure
- ID
- GRAVI.2025-11-08T09:09:13.150_2
- Header ID
- GRAVI.2025-11-08T09:09:13.150
- Date updated
- 2025-11-08 09:21:18 UTC+0000
- Release date
- 2026-11-08 09:21:18 UTC+0000
- UTC Start
- 2025-11-08 09:09:13.150
- UTC End
- 2025-11-08 09:10:37.150
- MJD Start
- 60987.3814022
- MJD End
- 60987.382374422225
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0045284999999999995
- Ambient temperature (°C)
- 12.07
- Seeing (arcsec)
- 0.785
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 | 48.7170 | 48.6020 | 42.0000 | 42.2000 |
| U1-U3 | 86.1550 | 85.9030 | 49.0000 | 49.1000 |
| U1-U4 | 103.8390 | 103.3700 | 82.9940 | 83.2320 |
| U2-U3 | 38.2590 | 38.1230 | 57.9000 | 58.1000 |
| U2-U4 | 74.2600 | 73.9760 | 108.4570 | 108.8000 |
| U3-U4 | 58.0220 | 57.9310 | 139.0550 | 139.4280 |
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 | 60987.3814022 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 31430 |
| HIERARCH ESO INS SOBJ NAME | HD_31430 |
| RA | 73.51978 |
| 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 | 48.717 |
| HIERARCH ESO ISS PBL12 END | 48.602 |
| HIERARCH ESO ISS PBLA12 START | 42.0 |
| HIERARCH ESO ISS PBLA12 END | 42.2 |
| HIERARCH ESO ISS PBL13 START | 86.155 |
| HIERARCH ESO ISS PBL13 END | 85.903 |
| HIERARCH ESO ISS PBLA13 START | 49.0 |
| HIERARCH ESO ISS PBLA13 END | 49.1 |
| HIERARCH ESO ISS PBL14 START | 103.839 |
| HIERARCH ESO ISS PBL14 END | 103.37 |
| HIERARCH ESO ISS PBLA14 START | 82.994 |
| HIERARCH ESO ISS PBLA14 END | 83.232 |
| HIERARCH ESO ISS PBL23 START | 38.259 |
| HIERARCH ESO ISS PBL23 END | 38.123 |
| HIERARCH ESO ISS PBLA23 START | 57.9 |
| HIERARCH ESO ISS PBLA23 END | 58.1 |
| HIERARCH ESO ISS PBL24 START | 74.26 |
| HIERARCH ESO ISS PBL24 END | 73.976 |
| HIERARCH ESO ISS PBLA24 START | 108.457 |
| HIERARCH ESO ISS PBLA24 END | 108.8 |
| HIERARCH ESO ISS PBL34 START | 58.022 |
| HIERARCH ESO ISS PBL34 END | 57.931 |
| HIERARCH ESO ISS PBLA34 START | 139.055 |
| HIERARCH ESO ISS PBLA34 END | 139.428 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004654 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004403 |
| HIERARCH ESO ISS AMBI TEMP | 12.07 |
| HIERARCH ESO ISS AMBI FWHM START | 0.76 |
| HIERARCH ESO ISS AMBI FWHM END | 0.81 |
| HIERARCH ESO FT ROBJ NAME | HD_31430 |
| HIERARCH ESO FT ROBJ ALPHA | 045404.100 |
| HIERARCH ESO FT ROBJ DELTA | -380946.324 |