Exposure
- ID
- GRAVI.2025-11-07T08:08:36.247_2
- Header ID
- GRAVI.2025-11-07T08:08:36.247
- Date updated
- 2025-11-07 08:20:57 UTC+0000
- Release date
- 2026-11-07 08:20:56 UTC+0000
- UTC Start
- 2025-11-07 08:08:36.247
- UTC End
- 2025-11-07 08:10:00.247
- MJD Start
- 60986.33930841
- MJD End
- 60986.34028063223
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.001347
- Ambient temperature (°C)
- 8.12
- Seeing (arcsec)
- 2.26
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 | 52.2850 | 52.2060 | 36.9000 | 37.1000 |
| U1-U3 | 93.9260 | 93.7530 | 43.7000 | 43.9000 |
| U1-U4 | 118.3560 | 118.0360 | 74.4560 | 74.6870 |
| U2-U3 | 42.4590 | 42.3660 | 52.1000 | 52.2000 |
| U2-U4 | 83.2320 | 83.0330 | 96.9560 | 97.2470 |
| U3-U4 | 61.0160 | 60.9490 | 126.3680 | 126.6870 |
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 | 60986.33930841 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 31430 |
| HIERARCH ESO INS SOBJ NAME | HD_31430 |
| RA | 73.519941 |
| 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 | 52.285 |
| HIERARCH ESO ISS PBL12 END | 52.206 |
| HIERARCH ESO ISS PBLA12 START | 36.9 |
| HIERARCH ESO ISS PBLA12 END | 37.1 |
| HIERARCH ESO ISS PBL13 START | 93.926 |
| HIERARCH ESO ISS PBL13 END | 93.753 |
| HIERARCH ESO ISS PBLA13 START | 43.7 |
| HIERARCH ESO ISS PBLA13 END | 43.9 |
| HIERARCH ESO ISS PBL14 START | 118.356 |
| HIERARCH ESO ISS PBL14 END | 118.036 |
| HIERARCH ESO ISS PBLA14 START | 74.456 |
| HIERARCH ESO ISS PBLA14 END | 74.687 |
| HIERARCH ESO ISS PBL23 START | 42.459 |
| HIERARCH ESO ISS PBL23 END | 42.366 |
| HIERARCH ESO ISS PBLA23 START | 52.1 |
| HIERARCH ESO ISS PBLA23 END | 52.2 |
| HIERARCH ESO ISS PBL24 START | 83.232 |
| HIERARCH ESO ISS PBL24 END | 83.033 |
| HIERARCH ESO ISS PBLA24 START | 96.956 |
| HIERARCH ESO ISS PBLA24 END | 97.247 |
| HIERARCH ESO ISS PBL34 START | 61.016 |
| HIERARCH ESO ISS PBL34 END | 60.949 |
| HIERARCH ESO ISS PBLA34 START | 126.368 |
| HIERARCH ESO ISS PBLA34 END | 126.687 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001347 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.001347 |
| HIERARCH ESO ISS AMBI TEMP | 8.12 |
| HIERARCH ESO ISS AMBI FWHM START | 2.22 |
| HIERARCH ESO ISS AMBI FWHM END | 2.3 |
| HIERARCH ESO FT ROBJ NAME | HD_31430 |
| HIERARCH ESO FT ROBJ ALPHA | 045404.100 |
| HIERARCH ESO FT ROBJ DELTA | -380946.324 |