Exposure
- ID
- GRAVI.2025-12-05T02:40:00.532_2
- Header ID
- GRAVI.2025-12-05T02:40:00.532
- Date updated
- 2025-12-05 02:50:40 UTC+0000
- Release date
- 2026-12-05 02:50:40 UTC+0000
- UTC Start
- 2025-12-05 02:40:00.532
- UTC End
- 2025-12-05 02:41:24.532
- MJD Start
- 61014.11111727
- MJD End
- 61014.11208949222
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0046914999999999995
- Ambient temperature (°C)
- 12.61
- Seeing (arcsec)
- 0.71
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 | 49.1850 | 49.2420 | 15.4000 | 15.6000 |
| U1-U3 | 87.6300 | 87.7880 | 22.5000 | 22.8000 |
| U1-U4 | 109.0740 | 109.5260 | 55.6680 | 55.8480 |
| U2-U3 | 39.3000 | 39.4010 | 31.4000 | 31.7000 |
| U2-U4 | 78.3080 | 78.6340 | 79.6360 | 79.6980 |
| U3-U4 | 59.8010 | 59.9310 | 108.9850 | 108.9610 |
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 | 61014.11111727 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402558 |
| 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 | 109.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 84 |
| HIERARCH ESO ISS PBL12 START | 49.185 |
| HIERARCH ESO ISS PBL12 END | 49.242 |
| HIERARCH ESO ISS PBLA12 START | 15.4 |
| HIERARCH ESO ISS PBLA12 END | 15.6 |
| HIERARCH ESO ISS PBL13 START | 87.63 |
| HIERARCH ESO ISS PBL13 END | 87.788 |
| HIERARCH ESO ISS PBLA13 START | 22.5 |
| HIERARCH ESO ISS PBLA13 END | 22.8 |
| HIERARCH ESO ISS PBL14 START | 109.074 |
| HIERARCH ESO ISS PBL14 END | 109.526 |
| HIERARCH ESO ISS PBLA14 START | 55.668 |
| HIERARCH ESO ISS PBLA14 END | 55.848 |
| HIERARCH ESO ISS PBL23 START | 39.3 |
| HIERARCH ESO ISS PBL23 END | 39.401 |
| HIERARCH ESO ISS PBLA23 START | 31.4 |
| HIERARCH ESO ISS PBLA23 END | 31.7 |
| HIERARCH ESO ISS PBL24 START | 78.308 |
| HIERARCH ESO ISS PBL24 END | 78.634 |
| HIERARCH ESO ISS PBLA24 START | 79.636 |
| HIERARCH ESO ISS PBLA24 END | 79.698 |
| HIERARCH ESO ISS PBL34 START | 59.801 |
| HIERARCH ESO ISS PBL34 END | 59.931 |
| HIERARCH ESO ISS PBLA34 START | 108.985 |
| HIERARCH ESO ISS PBLA34 END | 108.961 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004573 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00481 |
| HIERARCH ESO ISS AMBI TEMP | 12.61 |
| HIERARCH ESO ISS AMBI FWHM START | 0.77 |
| HIERARCH ESO ISS AMBI FWHM END | 0.65 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |