Exposure
- ID
- GRAVI.2025-12-05T02:53:39.567_2
- Header ID
- GRAVI.2025-12-05T02:53:39.567
- Date updated
- 2025-12-05 03:05:44 UTC+0000
- Release date
- 2026-12-05 03:05:44 UTC+0000
- UTC Start
- 2025-12-05 02:53:39.567
- UTC End
- 2025-12-05 02:56:27.567
- MJD Start
- 61014.12059684
- MJD End
- 61014.12254128445
- Exposure time (s)
- 168.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004198
- Ambient temperature (°C)
- 12.36
- Seeing (arcsec)
- 0.7849999999999999
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 | 49.6490 | 49.7660 | 17.4000 | 17.8000 |
| U1-U3 | 88.8720 | 89.1770 | 24.5000 | 25.0000 |
| U1-U4 | 112.4810 | 113.2670 | 56.9880 | 57.2820 |
| U2-U3 | 40.0850 | 40.2730 | 33.3000 | 33.8000 |
| U2-U4 | 80.7160 | 81.2550 | 80.0920 | 80.1940 |
| U3-U4 | 60.7280 | 60.9220 | 108.8280 | 108.8010 |
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 | 61014.12059684 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402543 |
| 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 | 49.649 |
| HIERARCH ESO ISS PBL12 END | 49.766 |
| HIERARCH ESO ISS PBLA12 START | 17.4 |
| HIERARCH ESO ISS PBLA12 END | 17.8 |
| HIERARCH ESO ISS PBL13 START | 88.872 |
| HIERARCH ESO ISS PBL13 END | 89.177 |
| HIERARCH ESO ISS PBLA13 START | 24.5 |
| HIERARCH ESO ISS PBLA13 END | 25.0 |
| HIERARCH ESO ISS PBL14 START | 112.481 |
| HIERARCH ESO ISS PBL14 END | 113.267 |
| HIERARCH ESO ISS PBLA14 START | 56.988 |
| HIERARCH ESO ISS PBLA14 END | 57.282 |
| HIERARCH ESO ISS PBL23 START | 40.085 |
| HIERARCH ESO ISS PBL23 END | 40.273 |
| HIERARCH ESO ISS PBLA23 START | 33.3 |
| HIERARCH ESO ISS PBLA23 END | 33.8 |
| HIERARCH ESO ISS PBL24 START | 80.716 |
| HIERARCH ESO ISS PBL24 END | 81.255 |
| HIERARCH ESO ISS PBLA24 START | 80.092 |
| HIERARCH ESO ISS PBLA24 END | 80.194 |
| HIERARCH ESO ISS PBL34 START | 60.728 |
| HIERARCH ESO ISS PBL34 END | 60.922 |
| HIERARCH ESO ISS PBLA34 START | 108.828 |
| HIERARCH ESO ISS PBLA34 END | 108.801 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004211 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004185 |
| HIERARCH ESO ISS AMBI TEMP | 12.36 |
| HIERARCH ESO ISS AMBI FWHM START | 0.75 |
| HIERARCH ESO ISS AMBI FWHM END | 0.82 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |