Exposure
- ID
- GRAVI.2025-11-06T08:41:00.521_2
- Header ID
- GRAVI.2025-11-06T08:41:00.521
- Date updated
- 2025-11-06 08:50:54 UTC+0000
- Release date
- 2026-11-06 08:50:54 UTC+0000
- UTC Start
- 2025-11-06 08:41:00.521
- UTC End
- 2025-11-06 08:42:24.521
- MJD Start
- 60985.36181158
- MJD End
- 60985.36278380222
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002726
- Ambient temperature (°C)
- 10.27
- Seeing (arcsec)
- 0.9650000000000001
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 | 56.5560 | 56.5580 | 35.1000 | 35.1000 |
| U1-U3 | 102.2390 | 102.2070 | 39.9000 | 39.9000 |
| U1-U4 | 121.3540 | 121.0390 | 62.2530 | 62.1930 |
| U2-U3 | 46.1210 | 46.0830 | 45.8000 | 45.7000 |
| U2-U4 | 75.5670 | 75.2110 | 82.2180 | 82.1990 |
| U3-U4 | 47.2410 | 46.9700 | 117.6800 | 117.8720 |
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 | 60985.36181158 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402836 |
| 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 | 56.556 |
| HIERARCH ESO ISS PBL12 END | 56.558 |
| HIERARCH ESO ISS PBLA12 START | 35.1 |
| HIERARCH ESO ISS PBLA12 END | 35.1 |
| HIERARCH ESO ISS PBL13 START | 102.239 |
| HIERARCH ESO ISS PBL13 END | 102.207 |
| HIERARCH ESO ISS PBLA13 START | 39.9 |
| HIERARCH ESO ISS PBLA13 END | 39.9 |
| HIERARCH ESO ISS PBL14 START | 121.354 |
| HIERARCH ESO ISS PBL14 END | 121.039 |
| HIERARCH ESO ISS PBLA14 START | 62.253 |
| HIERARCH ESO ISS PBLA14 END | 62.193 |
| HIERARCH ESO ISS PBL23 START | 46.121 |
| HIERARCH ESO ISS PBL23 END | 46.083 |
| HIERARCH ESO ISS PBLA23 START | 45.8 |
| HIERARCH ESO ISS PBLA23 END | 45.7 |
| HIERARCH ESO ISS PBL24 START | 75.567 |
| HIERARCH ESO ISS PBL24 END | 75.211 |
| HIERARCH ESO ISS PBLA24 START | 82.218 |
| HIERARCH ESO ISS PBLA24 END | 82.199 |
| HIERARCH ESO ISS PBL34 START | 47.241 |
| HIERARCH ESO ISS PBL34 END | 46.97 |
| HIERARCH ESO ISS PBLA34 START | 117.68 |
| HIERARCH ESO ISS PBLA34 END | 117.872 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002946 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002506 |
| HIERARCH ESO ISS AMBI TEMP | 10.27 |
| HIERARCH ESO ISS AMBI FWHM START | 0.92 |
| HIERARCH ESO ISS AMBI FWHM END | 1.01 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |