Exposure
- ID
- GRAVI.2025-11-06T08:46:27.534_2
- Header ID
- GRAVI.2025-11-06T08:46:27.534
- 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 08:46:27.534
- UTC End
- 2025-11-06 08:47:51.534
- MJD Start
- 60985.36559646
- MJD End
- 60985.36656868222
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002787
- Ambient temperature (°C)
- 10.29
- Seeing (arcsec)
- 0.88
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 | 56.5580 | 35.2000 | 35.2000 |
| U1-U3 | 102.1300 | 102.0910 | 39.9000 | 39.9000 |
| U1-U4 | 120.3300 | 119.9980 | 62.0540 | 61.9890 |
| U2-U3 | 45.9950 | 45.9530 | 45.7000 | 45.6000 |
| U2-U4 | 74.4140 | 74.0450 | 82.1550 | 82.1340 |
| U3-U4 | 46.3680 | 46.0920 | 118.3060 | 118.5090 |
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 | 60985.36559646 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.40284 |
| 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 | 56.558 |
| HIERARCH ESO ISS PBLA12 START | 35.2 |
| HIERARCH ESO ISS PBLA12 END | 35.2 |
| HIERARCH ESO ISS PBL13 START | 102.13 |
| HIERARCH ESO ISS PBL13 END | 102.091 |
| HIERARCH ESO ISS PBLA13 START | 39.9 |
| HIERARCH ESO ISS PBLA13 END | 39.9 |
| HIERARCH ESO ISS PBL14 START | 120.33 |
| HIERARCH ESO ISS PBL14 END | 119.998 |
| HIERARCH ESO ISS PBLA14 START | 62.054 |
| HIERARCH ESO ISS PBLA14 END | 61.989 |
| HIERARCH ESO ISS PBL23 START | 45.995 |
| HIERARCH ESO ISS PBL23 END | 45.953 |
| HIERARCH ESO ISS PBLA23 START | 45.7 |
| HIERARCH ESO ISS PBLA23 END | 45.6 |
| HIERARCH ESO ISS PBL24 START | 74.414 |
| HIERARCH ESO ISS PBL24 END | 74.045 |
| HIERARCH ESO ISS PBLA24 START | 82.155 |
| HIERARCH ESO ISS PBLA24 END | 82.134 |
| HIERARCH ESO ISS PBL34 START | 46.368 |
| HIERARCH ESO ISS PBL34 END | 46.092 |
| HIERARCH ESO ISS PBLA34 START | 118.306 |
| HIERARCH ESO ISS PBLA34 END | 118.509 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002696 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002878 |
| HIERARCH ESO ISS AMBI TEMP | 10.29 |
| HIERARCH ESO ISS AMBI FWHM START | 0.91 |
| 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 |