Exposure
- ID
- GRAVI.2025-11-06T07:29:18.338_2
- Header ID
- GRAVI.2025-11-06T07:29:18.338
- Date updated
- 2025-11-06 07:41:03 UTC+0000
- Release date
- 2026-11-06 07:41:03 UTC+0000
- UTC Start
- 2025-11-06 07:29:18.338
- UTC End
- 2025-11-06 07:30:42.338
- MJD Start
- 60985.3120178
- MJD End
- 60985.31299002223
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003092
- Ambient temperature (°C)
- 10.66
- Seeing (arcsec)
- 0.73
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 | 55.5710 | 55.6490 | 32.8000 | 33.0000 |
| U1-U3 | 101.4680 | 101.5860 | 38.6000 | 38.7000 |
| U1-U4 | 129.6650 | 129.5070 | 63.4300 | 63.4290 |
| U2-U3 | 46.5090 | 46.5410 | 45.5000 | 45.5000 |
| U2-U4 | 86.5710 | 86.2540 | 82.4930 | 82.4990 |
| U3-U4 | 56.8310 | 56.4930 | 112.0260 | 112.1990 |
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 | 60985.3120178 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402838 |
| DEC | -2.47382 |
| 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 | 193.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 84 |
| HIERARCH ESO ISS PBL12 START | 55.571 |
| HIERARCH ESO ISS PBL12 END | 55.649 |
| HIERARCH ESO ISS PBLA12 START | 32.8 |
| HIERARCH ESO ISS PBLA12 END | 33.0 |
| HIERARCH ESO ISS PBL13 START | 101.468 |
| HIERARCH ESO ISS PBL13 END | 101.586 |
| HIERARCH ESO ISS PBLA13 START | 38.6 |
| HIERARCH ESO ISS PBLA13 END | 38.7 |
| HIERARCH ESO ISS PBL14 START | 129.665 |
| HIERARCH ESO ISS PBL14 END | 129.507 |
| HIERARCH ESO ISS PBLA14 START | 63.43 |
| HIERARCH ESO ISS PBLA14 END | 63.429 |
| HIERARCH ESO ISS PBL23 START | 46.509 |
| HIERARCH ESO ISS PBL23 END | 46.541 |
| HIERARCH ESO ISS PBLA23 START | 45.5 |
| HIERARCH ESO ISS PBLA23 END | 45.5 |
| HIERARCH ESO ISS PBL24 START | 86.571 |
| HIERARCH ESO ISS PBL24 END | 86.254 |
| HIERARCH ESO ISS PBLA24 START | 82.493 |
| HIERARCH ESO ISS PBLA24 END | 82.499 |
| HIERARCH ESO ISS PBL34 START | 56.831 |
| HIERARCH ESO ISS PBL34 END | 56.493 |
| HIERARCH ESO ISS PBLA34 START | 112.026 |
| HIERARCH ESO ISS PBLA34 END | 112.199 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003128 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003056 |
| HIERARCH ESO ISS AMBI TEMP | 10.66 |
| HIERARCH ESO ISS AMBI FWHM START | 0.73 |
| HIERARCH ESO ISS AMBI FWHM END | 0.73 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |