Exposure
- ID
- GRAVI.2025-11-08T09:18:55.175_2
- Header ID
- GRAVI.2025-11-08T09:18:55.175
- Date updated
- 2025-11-08 09:25:47 UTC+0000
- Release date
- 2026-11-08 09:25:47 UTC+0000
- UTC Start
- 2025-11-08 09:18:55.175
- UTC End
- 2025-11-08 09:19:14.375
- MJD Start
- 60987.3881386
- MJD End
- 60987.388360822224
- Exposure time (s)
- 19.2
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003982
- Ambient temperature (°C)
- 11.91
- Seeing (arcsec)
- 0.99
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 | 48.0610 | 48.0170 | 42.7000 | 42.7000 |
| U1-U3 | 84.7270 | 84.6330 | 49.7000 | 49.7000 |
| U1-U4 | 101.1830 | 101.0080 | 84.3250 | 84.4120 |
| U2-U3 | 37.4880 | 37.4370 | 58.7000 | 58.8000 |
| U2-U4 | 72.6600 | 72.5540 | 110.3930 | 110.5210 |
| U3-U4 | 57.5150 | 57.4820 | 141.1530 | 141.2910 |
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 | 60987.3881386 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 31430 |
| HIERARCH ESO INS SOBJ NAME | HD_31430 |
| RA | 73.519779 |
| 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 | 41.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 64 |
| HIERARCH ESO ISS PBL12 START | 48.061 |
| HIERARCH ESO ISS PBL12 END | 48.017 |
| HIERARCH ESO ISS PBLA12 START | 42.7 |
| HIERARCH ESO ISS PBLA12 END | 42.7 |
| HIERARCH ESO ISS PBL13 START | 84.727 |
| HIERARCH ESO ISS PBL13 END | 84.633 |
| HIERARCH ESO ISS PBLA13 START | 49.7 |
| HIERARCH ESO ISS PBLA13 END | 49.7 |
| HIERARCH ESO ISS PBL14 START | 101.183 |
| HIERARCH ESO ISS PBL14 END | 101.008 |
| HIERARCH ESO ISS PBLA14 START | 84.325 |
| HIERARCH ESO ISS PBLA14 END | 84.412 |
| HIERARCH ESO ISS PBL23 START | 37.488 |
| HIERARCH ESO ISS PBL23 END | 37.437 |
| HIERARCH ESO ISS PBLA23 START | 58.7 |
| HIERARCH ESO ISS PBLA23 END | 58.8 |
| HIERARCH ESO ISS PBL24 START | 72.66 |
| HIERARCH ESO ISS PBL24 END | 72.554 |
| HIERARCH ESO ISS PBLA24 START | 110.393 |
| HIERARCH ESO ISS PBLA24 END | 110.521 |
| HIERARCH ESO ISS PBL34 START | 57.515 |
| HIERARCH ESO ISS PBL34 END | 57.482 |
| HIERARCH ESO ISS PBLA34 START | 141.153 |
| HIERARCH ESO ISS PBLA34 END | 141.291 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003982 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003982 |
| HIERARCH ESO ISS AMBI TEMP | 11.91 |
| HIERARCH ESO ISS AMBI FWHM START | 0.99 |
| HIERARCH ESO ISS AMBI FWHM END | 0.99 |
| HIERARCH ESO FT ROBJ NAME | HD_31430 |
| HIERARCH ESO FT ROBJ ALPHA | 045404.100 |
| HIERARCH ESO FT ROBJ DELTA | -380946.324 |