Exposure
- ID
- GRAVI.2025-11-07T08:17:54.270_2
- Header ID
- GRAVI.2025-11-07T08:17:54.270
- Date updated
- 2025-11-07 08:30:39 UTC+0000
- Release date
- 2026-11-07 08:30:39 UTC+0000
- UTC Start
- 2025-11-07 08:17:54.270
- UTC End
- 2025-11-07 08:20:42.270
- MJD Start
- 60986.34576701
- MJD End
- 60986.34771145445
- Exposure time (s)
- 168.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0013735000000000002
- Ambient temperature (°C)
- 8.07
- Seeing (arcsec)
- 2.7800000000000002
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 | 51.8550 | 51.6940 | 37.7000 | 38.0000 |
| U1-U3 | 92.9890 | 92.6390 | 44.6000 | 44.9000 |
| U1-U4 | 116.6150 | 115.9630 | 75.6740 | 76.1090 |
| U2-U3 | 41.9530 | 41.7640 | 53.0000 | 53.3000 |
| U2-U4 | 82.1490 | 81.7430 | 98.5020 | 99.0610 |
| U3-U4 | 60.6530 | 60.5160 | 128.0710 | 128.6890 |
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 | 60986.34576701 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 31430 |
| HIERARCH ESO INS SOBJ NAME | HD_31430 |
| RA | 73.519944 |
| DEC | -38.16257 |
| 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 | 51.855 |
| HIERARCH ESO ISS PBL12 END | 51.694 |
| HIERARCH ESO ISS PBLA12 START | 37.7 |
| HIERARCH ESO ISS PBLA12 END | 38.0 |
| HIERARCH ESO ISS PBL13 START | 92.989 |
| HIERARCH ESO ISS PBL13 END | 92.639 |
| HIERARCH ESO ISS PBLA13 START | 44.6 |
| HIERARCH ESO ISS PBLA13 END | 44.9 |
| HIERARCH ESO ISS PBL14 START | 116.615 |
| HIERARCH ESO ISS PBL14 END | 115.963 |
| HIERARCH ESO ISS PBLA14 START | 75.674 |
| HIERARCH ESO ISS PBLA14 END | 76.109 |
| HIERARCH ESO ISS PBL23 START | 41.953 |
| HIERARCH ESO ISS PBL23 END | 41.764 |
| HIERARCH ESO ISS PBLA23 START | 53.0 |
| HIERARCH ESO ISS PBLA23 END | 53.3 |
| HIERARCH ESO ISS PBL24 START | 82.149 |
| HIERARCH ESO ISS PBL24 END | 81.743 |
| HIERARCH ESO ISS PBLA24 START | 98.502 |
| HIERARCH ESO ISS PBLA24 END | 99.061 |
| HIERARCH ESO ISS PBL34 START | 60.653 |
| HIERARCH ESO ISS PBL34 END | 60.516 |
| HIERARCH ESO ISS PBLA34 START | 128.071 |
| HIERARCH ESO ISS PBLA34 END | 128.689 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001366 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.001381 |
| HIERARCH ESO ISS AMBI TEMP | 8.07 |
| HIERARCH ESO ISS AMBI FWHM START | 3.1 |
| HIERARCH ESO ISS AMBI FWHM END | 2.46 |
| HIERARCH ESO FT ROBJ NAME | HD_31430 |
| HIERARCH ESO FT ROBJ ALPHA | 045404.100 |
| HIERARCH ESO FT ROBJ DELTA | -380946.324 |