Exposure
- ID
- GRAVI.2025-11-06T08:04:33.428_2
- Header ID
- GRAVI.2025-11-06T08:04:33.428
- Date updated
- 2025-11-06 08:15:59 UTC+0000
- Release date
- 2026-11-06 08:15:59 UTC+0000
- UTC Start
- 2025-11-06 08:04:33.428
- UTC End
- 2025-11-06 08:05:57.428
- MJD Start
- 60985.33649801
- MJD End
- 60985.337470232225
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0025069999999999997
- Ambient temperature (°C)
- 10.34
- Seeing (arcsec)
- 0.97
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 | 56.2670 | 56.2910 | 34.3000 | 34.3000 |
| U1-U3 | 102.3520 | 102.3700 | 39.6000 | 39.6000 |
| U1-U4 | 126.7990 | 126.5980 | 63.1620 | 63.1340 |
| U2-U3 | 46.6120 | 46.6030 | 46.0000 | 46.0000 |
| U2-U4 | 82.1430 | 81.8790 | 82.4720 | 82.4660 |
| U3-U4 | 52.5910 | 52.3610 | 114.3000 | 114.4320 |
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 | 60985.33649801 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402836 |
| DEC | -2.47381 |
| 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 | 56.267 |
| HIERARCH ESO ISS PBL12 END | 56.291 |
| HIERARCH ESO ISS PBLA12 START | 34.3 |
| HIERARCH ESO ISS PBLA12 END | 34.3 |
| HIERARCH ESO ISS PBL13 START | 102.352 |
| HIERARCH ESO ISS PBL13 END | 102.37 |
| HIERARCH ESO ISS PBLA13 START | 39.6 |
| HIERARCH ESO ISS PBLA13 END | 39.6 |
| HIERARCH ESO ISS PBL14 START | 126.799 |
| HIERARCH ESO ISS PBL14 END | 126.598 |
| HIERARCH ESO ISS PBLA14 START | 63.162 |
| HIERARCH ESO ISS PBLA14 END | 63.134 |
| HIERARCH ESO ISS PBL23 START | 46.612 |
| HIERARCH ESO ISS PBL23 END | 46.603 |
| HIERARCH ESO ISS PBLA23 START | 46.0 |
| HIERARCH ESO ISS PBLA23 END | 46.0 |
| HIERARCH ESO ISS PBL24 START | 82.143 |
| HIERARCH ESO ISS PBL24 END | 81.879 |
| HIERARCH ESO ISS PBLA24 START | 82.472 |
| HIERARCH ESO ISS PBLA24 END | 82.466 |
| HIERARCH ESO ISS PBL34 START | 52.591 |
| HIERARCH ESO ISS PBL34 END | 52.361 |
| HIERARCH ESO ISS PBLA34 START | 114.3 |
| HIERARCH ESO ISS PBLA34 END | 114.432 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002443 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002571 |
| HIERARCH ESO ISS AMBI TEMP | 10.34 |
| HIERARCH ESO ISS AMBI FWHM START | 1.02 |
| HIERARCH ESO ISS AMBI FWHM END | 0.92 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |