Exposure
- ID
- GRAVI.2025-12-05T02:50:00.558_2
- Header ID
- GRAVI.2025-12-05T02:50:00.558
- Date updated
- 2025-12-05 03:00:57 UTC+0000
- Release date
- 2026-12-05 03:00:57 UTC+0000
- UTC Start
- 2025-12-05 02:50:00.558
- UTC End
- 2025-12-05 02:52:48.558
- MJD Start
- 61014.11806201
- MJD End
- 61014.12000645445
- Exposure time (s)
- 168.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003956
- Ambient temperature (°C)
- 12.46
- Seeing (arcsec)
- 0.8
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 | 49.5180 | 49.6360 | 16.8000 | 17.3000 |
| U1-U3 | 88.5290 | 88.8380 | 24.0000 | 24.4000 |
| U1-U4 | 111.5750 | 112.3930 | 56.6460 | 56.9550 |
| U2-U3 | 39.8710 | 40.0640 | 32.8000 | 33.3000 |
| U2-U4 | 80.0870 | 80.6550 | 79.9740 | 80.0810 |
| U3-U4 | 60.4940 | 60.7050 | 108.8640 | 108.8320 |
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 | 61014.11806201 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402539 |
| DEC | -2.47416 |
| 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 | 49.518 |
| HIERARCH ESO ISS PBL12 END | 49.636 |
| HIERARCH ESO ISS PBLA12 START | 16.8 |
| HIERARCH ESO ISS PBLA12 END | 17.3 |
| HIERARCH ESO ISS PBL13 START | 88.529 |
| HIERARCH ESO ISS PBL13 END | 88.838 |
| HIERARCH ESO ISS PBLA13 START | 24.0 |
| HIERARCH ESO ISS PBLA13 END | 24.4 |
| HIERARCH ESO ISS PBL14 START | 111.575 |
| HIERARCH ESO ISS PBL14 END | 112.393 |
| HIERARCH ESO ISS PBLA14 START | 56.646 |
| HIERARCH ESO ISS PBLA14 END | 56.955 |
| HIERARCH ESO ISS PBL23 START | 39.871 |
| HIERARCH ESO ISS PBL23 END | 40.064 |
| HIERARCH ESO ISS PBLA23 START | 32.8 |
| HIERARCH ESO ISS PBLA23 END | 33.3 |
| HIERARCH ESO ISS PBL24 START | 80.087 |
| HIERARCH ESO ISS PBL24 END | 80.655 |
| HIERARCH ESO ISS PBLA24 START | 79.974 |
| HIERARCH ESO ISS PBLA24 END | 80.081 |
| HIERARCH ESO ISS PBL34 START | 60.494 |
| HIERARCH ESO ISS PBL34 END | 60.705 |
| HIERARCH ESO ISS PBLA34 START | 108.864 |
| HIERARCH ESO ISS PBLA34 END | 108.832 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003701 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004211 |
| HIERARCH ESO ISS AMBI TEMP | 12.46 |
| HIERARCH ESO ISS AMBI FWHM START | 0.85 |
| 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 |