Exposure
- ID
- GRAVI.2025-12-05T02:18:18.477_2
- Header ID
- GRAVI.2025-12-05T02:18:18.477
- Date updated
- 2025-12-05 02:25:54 UTC+0000
- Release date
- 2026-12-05 02:25:54 UTC+0000
- UTC Start
- 2025-12-05 02:18:18.477
- UTC End
- 2025-12-05 02:18:47.277
- MJD Start
- 61014.09604719
- MJD End
- 61014.09638052333
- Exposure time (s)
- 28.8
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005151
- Ambient temperature (°C)
- 12.66
- Seeing (arcsec)
- 0.61
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 | 48.5440 | 48.5660 | 12.1000 | 12.2000 |
| U1-U3 | 85.7950 | 85.8620 | 19.1000 | 19.2000 |
| U1-U4 | 103.2670 | 103.4980 | 53.1960 | 53.3000 |
| U2-U3 | 38.0750 | 38.1210 | 28.0000 | 28.1000 |
| U2-U4 | 73.9510 | 74.1300 | 78.7800 | 78.8160 |
| U3-U4 | 57.9440 | 58.0240 | 109.3830 | 109.3640 |
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 | 61014.09604719 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402567 |
| DEC | -2.47414 |
| 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 | 55.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 96 |
| HIERARCH ESO ISS PBL12 START | 48.544 |
| HIERARCH ESO ISS PBL12 END | 48.566 |
| HIERARCH ESO ISS PBLA12 START | 12.1 |
| HIERARCH ESO ISS PBLA12 END | 12.2 |
| HIERARCH ESO ISS PBL13 START | 85.795 |
| HIERARCH ESO ISS PBL13 END | 85.862 |
| HIERARCH ESO ISS PBLA13 START | 19.1 |
| HIERARCH ESO ISS PBLA13 END | 19.2 |
| HIERARCH ESO ISS PBL14 START | 103.267 |
| HIERARCH ESO ISS PBL14 END | 103.498 |
| HIERARCH ESO ISS PBLA14 START | 53.196 |
| HIERARCH ESO ISS PBLA14 END | 53.3 |
| HIERARCH ESO ISS PBL23 START | 38.075 |
| HIERARCH ESO ISS PBL23 END | 38.121 |
| HIERARCH ESO ISS PBLA23 START | 28.0 |
| HIERARCH ESO ISS PBLA23 END | 28.1 |
| HIERARCH ESO ISS PBL24 START | 73.951 |
| HIERARCH ESO ISS PBL24 END | 74.13 |
| HIERARCH ESO ISS PBLA24 START | 78.78 |
| HIERARCH ESO ISS PBLA24 END | 78.816 |
| HIERARCH ESO ISS PBL34 START | 57.944 |
| HIERARCH ESO ISS PBL34 END | 58.024 |
| HIERARCH ESO ISS PBLA34 START | 109.383 |
| HIERARCH ESO ISS PBLA34 END | 109.364 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005151 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005151 |
| HIERARCH ESO ISS AMBI TEMP | 12.66 |
| HIERARCH ESO ISS AMBI FWHM START | 0.61 |
| HIERARCH ESO ISS AMBI FWHM END | 0.61 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |