Exposure
- ID
- GRAVI.2025-11-07T07:44:45.185_2
- Header ID
- GRAVI.2025-11-07T07:44:45.185
- Date updated
- 2025-11-07 07:56:20 UTC+0000
- Release date
- 2026-11-07 07:56:20 UTC+0000
- UTC Start
- 2025-11-07 07:44:45.185
- UTC End
- 2025-11-07 07:47:33.185
- MJD Start
- 60986.3227452
- MJD End
- 60986.32468964445
- Exposure time (s)
- 168.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0019185
- Ambient temperature (°C)
- 7.77
- Seeing (arcsec)
- 1.5
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 | 53.2600 | 53.1340 | 34.7000 | 35.0000 |
| U1-U3 | 96.0480 | 95.7750 | 41.4000 | 41.7000 |
| U1-U4 | 122.2430 | 121.7470 | 71.3370 | 71.7750 |
| U2-U3 | 43.6000 | 43.4530 | 49.6000 | 50.0000 |
| U2-U4 | 85.6230 | 85.3220 | 93.1250 | 93.6520 |
| U3-U4 | 61.7830 | 61.6910 | 122.1910 | 122.7610 |
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 | 60986.3227452 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 31430 |
| HIERARCH ESO INS SOBJ NAME | HD_31430 |
| RA | 73.520021 |
| DEC | -38.1626 |
| 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 | 53.26 |
| HIERARCH ESO ISS PBL12 END | 53.134 |
| HIERARCH ESO ISS PBLA12 START | 34.7 |
| HIERARCH ESO ISS PBLA12 END | 35.0 |
| HIERARCH ESO ISS PBL13 START | 96.048 |
| HIERARCH ESO ISS PBL13 END | 95.775 |
| HIERARCH ESO ISS PBLA13 START | 41.4 |
| HIERARCH ESO ISS PBLA13 END | 41.7 |
| HIERARCH ESO ISS PBL14 START | 122.243 |
| HIERARCH ESO ISS PBL14 END | 121.747 |
| HIERARCH ESO ISS PBLA14 START | 71.337 |
| HIERARCH ESO ISS PBLA14 END | 71.775 |
| HIERARCH ESO ISS PBL23 START | 43.6 |
| HIERARCH ESO ISS PBL23 END | 43.453 |
| HIERARCH ESO ISS PBLA23 START | 49.6 |
| HIERARCH ESO ISS PBLA23 END | 50.0 |
| HIERARCH ESO ISS PBL24 START | 85.623 |
| HIERARCH ESO ISS PBL24 END | 85.322 |
| HIERARCH ESO ISS PBLA24 START | 93.125 |
| HIERARCH ESO ISS PBLA24 END | 93.652 |
| HIERARCH ESO ISS PBL34 START | 61.783 |
| HIERARCH ESO ISS PBL34 END | 61.691 |
| HIERARCH ESO ISS PBLA34 START | 122.191 |
| HIERARCH ESO ISS PBLA34 END | 122.761 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001824 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002013 |
| HIERARCH ESO ISS AMBI TEMP | 7.77 |
| HIERARCH ESO ISS AMBI FWHM START | 1.53 |
| HIERARCH ESO ISS AMBI FWHM END | 1.47 |
| HIERARCH ESO FT ROBJ NAME | HD_31430 |
| HIERARCH ESO FT ROBJ ALPHA | 045404.100 |
| HIERARCH ESO FT ROBJ DELTA | -380946.324 |