Exposure
- ID
- GRAVI.2025-11-07T07:36:42.165_2
- Header ID
- GRAVI.2025-11-07T07:36:42.165
- Date updated
- 2025-11-07 07:50:53 UTC+0000
- Release date
- 2026-11-07 07:50:52 UTC+0000
- UTC Start
- 2025-11-07 07:36:42.165
- UTC End
- 2025-11-07 07:39:30.165
- MJD Start
- 60986.31715469
- MJD End
- 60986.319099134445
- Exposure time (s)
- 168.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.001833
- Ambient temperature (°C)
- 7.69
- Seeing (arcsec)
- 1.665
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 | 53.5500 | 53.4330 | 33.9000 | 34.2000 |
| U1-U3 | 96.6780 | 96.4250 | 40.6000 | 40.9000 |
| U1-U4 | 123.3720 | 122.9190 | 70.2780 | 70.7140 |
| U2-U3 | 43.9370 | 43.8010 | 48.8000 | 49.1000 |
| U2-U4 | 86.3030 | 86.0320 | 91.8620 | 92.3800 |
| U3-U4 | 61.9840 | 61.9060 | 120.8350 | 121.3890 |
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 | 60986.31715469 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 31430 |
| HIERARCH ESO INS SOBJ NAME | HD_31430 |
| RA | 73.520047 |
| DEC | -38.16258 |
| 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 | 204.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 168 |
| HIERARCH ESO ISS PBL12 START | 53.55 |
| HIERARCH ESO ISS PBL12 END | 53.433 |
| HIERARCH ESO ISS PBLA12 START | 33.9 |
| HIERARCH ESO ISS PBLA12 END | 34.2 |
| HIERARCH ESO ISS PBL13 START | 96.678 |
| HIERARCH ESO ISS PBL13 END | 96.425 |
| HIERARCH ESO ISS PBLA13 START | 40.6 |
| HIERARCH ESO ISS PBLA13 END | 40.9 |
| HIERARCH ESO ISS PBL14 START | 123.372 |
| HIERARCH ESO ISS PBL14 END | 122.919 |
| HIERARCH ESO ISS PBLA14 START | 70.278 |
| HIERARCH ESO ISS PBLA14 END | 70.714 |
| HIERARCH ESO ISS PBL23 START | 43.937 |
| HIERARCH ESO ISS PBL23 END | 43.801 |
| HIERARCH ESO ISS PBLA23 START | 48.8 |
| HIERARCH ESO ISS PBLA23 END | 49.1 |
| HIERARCH ESO ISS PBL24 START | 86.303 |
| HIERARCH ESO ISS PBL24 END | 86.032 |
| HIERARCH ESO ISS PBLA24 START | 91.862 |
| HIERARCH ESO ISS PBLA24 END | 92.38 |
| HIERARCH ESO ISS PBL34 START | 61.984 |
| HIERARCH ESO ISS PBL34 END | 61.906 |
| HIERARCH ESO ISS PBLA34 START | 120.835 |
| HIERARCH ESO ISS PBLA34 END | 121.389 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002069 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.001597 |
| HIERARCH ESO ISS AMBI TEMP | 7.69 |
| HIERARCH ESO ISS AMBI FWHM START | 1.55 |
| HIERARCH ESO ISS AMBI FWHM END | 1.78 |
| HIERARCH ESO FT ROBJ NAME | HD_31430 |
| HIERARCH ESO FT ROBJ ALPHA | 045404.100 |
| HIERARCH ESO FT ROBJ DELTA | -380946.324 |