Exposure
- ID
- GRAVI.2025-11-07T07:20:18.124_2
- Header ID
- GRAVI.2025-11-07T07:20:18.124
- Date updated
- 2025-11-07 07:30:57 UTC+0000
- Release date
- 2026-11-07 07:30:57 UTC+0000
- UTC Start
- 2025-11-07 07:20:18.124
- UTC End
- 2025-11-07 07:21:42.124
- MJD Start
- 60986.30576532
- MJD End
- 60986.306737542225
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0020035
- Ambient temperature (°C)
- 7.7
- Seeing (arcsec)
- 1.37
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 | 54.0860 | 54.0320 | 32.2000 | 32.4000 |
| U1-U3 | 97.8390 | 97.7220 | 38.9000 | 39.1000 |
| U1-U4 | 125.4000 | 125.2000 | 68.0900 | 68.3270 |
| U2-U3 | 44.5540 | 44.4930 | 46.9000 | 47.1000 |
| U2-U4 | 87.4900 | 87.3760 | 89.3120 | 89.5840 |
| U3-U4 | 62.2920 | 62.2660 | 118.1320 | 118.4180 |
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 | 60986.30576532 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 31430 |
| HIERARCH ESO INS SOBJ NAME | HD_31430 |
| RA | 73.520056 |
| DEC | -38.16255 |
| 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 | 54.086 |
| HIERARCH ESO ISS PBL12 END | 54.032 |
| HIERARCH ESO ISS PBLA12 START | 32.2 |
| HIERARCH ESO ISS PBLA12 END | 32.4 |
| HIERARCH ESO ISS PBL13 START | 97.839 |
| HIERARCH ESO ISS PBL13 END | 97.722 |
| HIERARCH ESO ISS PBLA13 START | 38.9 |
| HIERARCH ESO ISS PBLA13 END | 39.1 |
| HIERARCH ESO ISS PBL14 START | 125.4 |
| HIERARCH ESO ISS PBL14 END | 125.2 |
| HIERARCH ESO ISS PBLA14 START | 68.09 |
| HIERARCH ESO ISS PBLA14 END | 68.327 |
| HIERARCH ESO ISS PBL23 START | 44.554 |
| HIERARCH ESO ISS PBL23 END | 44.493 |
| HIERARCH ESO ISS PBLA23 START | 46.9 |
| HIERARCH ESO ISS PBLA23 END | 47.1 |
| HIERARCH ESO ISS PBL24 START | 87.49 |
| HIERARCH ESO ISS PBL24 END | 87.376 |
| HIERARCH ESO ISS PBLA24 START | 89.312 |
| HIERARCH ESO ISS PBLA24 END | 89.584 |
| HIERARCH ESO ISS PBL34 START | 62.292 |
| HIERARCH ESO ISS PBL34 END | 62.266 |
| HIERARCH ESO ISS PBLA34 START | 118.132 |
| HIERARCH ESO ISS PBLA34 END | 118.418 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002091 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.001916 |
| HIERARCH ESO ISS AMBI TEMP | 7.7 |
| HIERARCH ESO ISS AMBI FWHM START | 1.25 |
| HIERARCH ESO ISS AMBI FWHM END | 1.49 |
| HIERARCH ESO FT ROBJ NAME | HD_31430 |
| HIERARCH ESO FT ROBJ ALPHA | 045404.100 |
| HIERARCH ESO FT ROBJ DELTA | -380946.324 |