Exposure
- ID
- GRAVI.2025-11-06T08:58:39.565_2
- Header ID
- GRAVI.2025-11-06T08:58:39.565
- Date updated
- 2025-11-06 09:11:33 UTC+0000
- Release date
- 2026-11-06 09:11:33 UTC+0000
- UTC Start
- 2025-11-06 08:58:39.565
- UTC End
- 2025-11-06 09:00:03.565
- MJD Start
- 60985.37406904
- MJD End
- 60985.375041262225
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003201
- Ambient temperature (°C)
- 10.18
- Seeing (arcsec)
- 0.75
Observation
- ID
- 71173
- Category
- science
- Program ID
- 116.29H7.001
- Program Title
- GPAO COMMISSIONING
- Program Type
- Normal
- PI / COI
- TEAM
Target
- ID
- 45803
- Name
- 51_Eri
- RA
- 69.40055416666667
- DEC
- -2.473548611111111
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 | 56.5280 | 56.5190 | 35.3000 | 35.3000 |
| U1-U3 | 101.8020 | 101.7460 | 39.8000 | 39.8000 |
| U1-U4 | 117.8650 | 117.4960 | 61.5480 | 61.4690 |
| U2-U3 | 45.6680 | 45.6170 | 45.4000 | 45.3000 |
| U2-U4 | 71.6980 | 71.2980 | 81.9880 | 81.9610 |
| U3-U4 | 44.3720 | 44.0840 | 119.8360 | 120.0690 |
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 | 60985.37406904 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.40282 |
| DEC | -2.47378 |
| 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 | 56.528 |
| HIERARCH ESO ISS PBL12 END | 56.519 |
| HIERARCH ESO ISS PBLA12 START | 35.3 |
| HIERARCH ESO ISS PBLA12 END | 35.3 |
| HIERARCH ESO ISS PBL13 START | 101.802 |
| HIERARCH ESO ISS PBL13 END | 101.746 |
| HIERARCH ESO ISS PBLA13 START | 39.8 |
| HIERARCH ESO ISS PBLA13 END | 39.8 |
| HIERARCH ESO ISS PBL14 START | 117.865 |
| HIERARCH ESO ISS PBL14 END | 117.496 |
| HIERARCH ESO ISS PBLA14 START | 61.548 |
| HIERARCH ESO ISS PBLA14 END | 61.469 |
| HIERARCH ESO ISS PBL23 START | 45.668 |
| HIERARCH ESO ISS PBL23 END | 45.617 |
| HIERARCH ESO ISS PBLA23 START | 45.4 |
| HIERARCH ESO ISS PBLA23 END | 45.3 |
| HIERARCH ESO ISS PBL24 START | 71.698 |
| HIERARCH ESO ISS PBL24 END | 71.298 |
| HIERARCH ESO ISS PBLA24 START | 81.988 |
| HIERARCH ESO ISS PBLA24 END | 81.961 |
| HIERARCH ESO ISS PBL34 START | 44.372 |
| HIERARCH ESO ISS PBL34 END | 44.084 |
| HIERARCH ESO ISS PBLA34 START | 119.836 |
| HIERARCH ESO ISS PBLA34 END | 120.069 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003201 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003201 |
| HIERARCH ESO ISS AMBI TEMP | 10.18 |
| HIERARCH ESO ISS AMBI FWHM START | 0.75 |
| HIERARCH ESO ISS AMBI FWHM END | 0.75 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |