Exposure
- ID
- GRAVI.2025-11-06T08:43:48.528_2
- Header ID
- GRAVI.2025-11-06T08:43:48.528
- Date updated
- 2025-11-06 08:56:40 UTC+0000
- Release date
- 2026-11-06 08:56:40 UTC+0000
- UTC Start
- 2025-11-06 08:43:48.528
- UTC End
- 2025-11-06 08:45:12.528
- MJD Start
- 60985.36375611
- MJD End
- 60985.36472833222
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0027355
- Ambient temperature (°C)
- 10.26
- Seeing (arcsec)
- 0.9299999999999999
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 | 56.5590 | 56.5600 | 35.1000 | 35.2000 |
| U1-U3 | 102.1860 | 102.1510 | 39.9000 | 39.9000 |
| U1-U4 | 120.8360 | 120.5120 | 62.1530 | 62.0900 |
| U2-U3 | 46.0580 | 46.0180 | 45.7000 | 45.7000 |
| U2-U4 | 74.9820 | 74.6190 | 82.1870 | 82.1670 |
| U3-U4 | 46.7960 | 46.5220 | 117.9960 | 118.1940 |
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 | 60985.36375611 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402837 |
| DEC | -2.47379 |
| 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 | 56.559 |
| HIERARCH ESO ISS PBL12 END | 56.56 |
| HIERARCH ESO ISS PBLA12 START | 35.1 |
| HIERARCH ESO ISS PBLA12 END | 35.2 |
| HIERARCH ESO ISS PBL13 START | 102.186 |
| HIERARCH ESO ISS PBL13 END | 102.151 |
| HIERARCH ESO ISS PBLA13 START | 39.9 |
| HIERARCH ESO ISS PBLA13 END | 39.9 |
| HIERARCH ESO ISS PBL14 START | 120.836 |
| HIERARCH ESO ISS PBL14 END | 120.512 |
| HIERARCH ESO ISS PBLA14 START | 62.153 |
| HIERARCH ESO ISS PBLA14 END | 62.09 |
| HIERARCH ESO ISS PBL23 START | 46.058 |
| HIERARCH ESO ISS PBL23 END | 46.018 |
| HIERARCH ESO ISS PBLA23 START | 45.7 |
| HIERARCH ESO ISS PBLA23 END | 45.7 |
| HIERARCH ESO ISS PBL24 START | 74.982 |
| HIERARCH ESO ISS PBL24 END | 74.619 |
| HIERARCH ESO ISS PBLA24 START | 82.187 |
| HIERARCH ESO ISS PBLA24 END | 82.167 |
| HIERARCH ESO ISS PBL34 START | 46.796 |
| HIERARCH ESO ISS PBL34 END | 46.522 |
| HIERARCH ESO ISS PBLA34 START | 117.996 |
| HIERARCH ESO ISS PBLA34 END | 118.194 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002506 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002965 |
| HIERARCH ESO ISS AMBI TEMP | 10.26 |
| HIERARCH ESO ISS AMBI FWHM START | 1.01 |
| HIERARCH ESO ISS AMBI FWHM END | 0.85 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |