Exposure
- ID
- GRAVI.2025-11-07T07:56:51.217_2
- Header ID
- GRAVI.2025-11-07T07:56:51.217
- Date updated
- 2025-11-07 08:05:41 UTC+0000
- Release date
- 2026-11-07 08:05:41 UTC+0000
- UTC Start
- 2025-11-07 07:56:51.217
- UTC End
- 2025-11-07 07:58:15.217
- MJD Start
- 60986.33114834
- MJD End
- 60986.33212056223
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0015345
- Ambient temperature (°C)
- 8.06
- Seeing (arcsec)
- 1.79
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 | 52.7850 | 52.7140 | 35.9000 | 36.0000 |
| U1-U3 | 95.0160 | 94.8600 | 42.6000 | 42.8000 |
| U1-U4 | 120.3640 | 120.0790 | 72.9280 | 73.1550 |
| U2-U3 | 43.0460 | 42.9620 | 50.9000 | 51.1000 |
| U2-U4 | 84.4740 | 84.2980 | 95.0570 | 95.3360 |
| U3-U4 | 61.4230 | 61.3660 | 124.2880 | 124.5920 |
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 | 60986.33114834 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 31430 |
| HIERARCH ESO INS SOBJ NAME | HD_31430 |
| RA | 73.520016 |
| DEC | -38.16259 |
| 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 | 52.785 |
| HIERARCH ESO ISS PBL12 END | 52.714 |
| HIERARCH ESO ISS PBLA12 START | 35.9 |
| HIERARCH ESO ISS PBLA12 END | 36.0 |
| HIERARCH ESO ISS PBL13 START | 95.016 |
| HIERARCH ESO ISS PBL13 END | 94.86 |
| HIERARCH ESO ISS PBLA13 START | 42.6 |
| HIERARCH ESO ISS PBLA13 END | 42.8 |
| HIERARCH ESO ISS PBL14 START | 120.364 |
| HIERARCH ESO ISS PBL14 END | 120.079 |
| HIERARCH ESO ISS PBLA14 START | 72.928 |
| HIERARCH ESO ISS PBLA14 END | 73.155 |
| HIERARCH ESO ISS PBL23 START | 43.046 |
| HIERARCH ESO ISS PBL23 END | 42.962 |
| HIERARCH ESO ISS PBLA23 START | 50.9 |
| HIERARCH ESO ISS PBLA23 END | 51.1 |
| HIERARCH ESO ISS PBL24 START | 84.474 |
| HIERARCH ESO ISS PBL24 END | 84.298 |
| HIERARCH ESO ISS PBLA24 START | 95.057 |
| HIERARCH ESO ISS PBLA24 END | 95.336 |
| HIERARCH ESO ISS PBL34 START | 61.423 |
| HIERARCH ESO ISS PBL34 END | 61.366 |
| HIERARCH ESO ISS PBLA34 START | 124.288 |
| HIERARCH ESO ISS PBLA34 END | 124.592 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001657 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.001412 |
| HIERARCH ESO ISS AMBI TEMP | 8.06 |
| HIERARCH ESO ISS AMBI FWHM START | 1.66 |
| HIERARCH ESO ISS AMBI FWHM END | 1.92 |
| HIERARCH ESO FT ROBJ NAME | HD_31430 |
| HIERARCH ESO FT ROBJ ALPHA | 045404.100 |
| HIERARCH ESO FT ROBJ DELTA | -380946.324 |