Exposure
- ID
- GRAVI.2025-11-06T08:10:00.442_2
- Header ID
- GRAVI.2025-11-06T08:10:00.442
- 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 08:10:00.442
- UTC End
- 2025-11-06 08:11:24.442
- MJD Start
- 60985.34028289
- MJD End
- 60985.341255112224
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002145
- Ambient temperature (°C)
- 10.41
- Seeing (arcsec)
- 0.98
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 | 56.3390 | 56.3600 | 34.5000 | 34.5000 |
| U1-U3 | 102.4020 | 102.4130 | 39.7000 | 39.7000 |
| U1-U4 | 126.1420 | 125.9230 | 63.0690 | 63.0370 |
| U2-U3 | 46.5770 | 46.5630 | 46.0000 | 46.0000 |
| U2-U4 | 81.2870 | 81.0060 | 82.4500 | 82.4430 |
| U3-U4 | 51.8490 | 51.6100 | 114.7290 | 114.8700 |
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 | 60985.34028289 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402832 |
| DEC | -2.4738 |
| 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 | 56.339 |
| HIERARCH ESO ISS PBL12 END | 56.36 |
| HIERARCH ESO ISS PBLA12 START | 34.5 |
| HIERARCH ESO ISS PBLA12 END | 34.5 |
| HIERARCH ESO ISS PBL13 START | 102.402 |
| HIERARCH ESO ISS PBL13 END | 102.413 |
| HIERARCH ESO ISS PBLA13 START | 39.7 |
| HIERARCH ESO ISS PBLA13 END | 39.7 |
| HIERARCH ESO ISS PBL14 START | 126.142 |
| HIERARCH ESO ISS PBL14 END | 125.923 |
| HIERARCH ESO ISS PBLA14 START | 63.069 |
| HIERARCH ESO ISS PBLA14 END | 63.037 |
| HIERARCH ESO ISS PBL23 START | 46.577 |
| HIERARCH ESO ISS PBL23 END | 46.563 |
| HIERARCH ESO ISS PBLA23 START | 46.0 |
| HIERARCH ESO ISS PBLA23 END | 46.0 |
| HIERARCH ESO ISS PBL24 START | 81.287 |
| HIERARCH ESO ISS PBL24 END | 81.006 |
| HIERARCH ESO ISS PBLA24 START | 82.45 |
| HIERARCH ESO ISS PBLA24 END | 82.443 |
| HIERARCH ESO ISS PBL34 START | 51.849 |
| HIERARCH ESO ISS PBL34 END | 51.61 |
| HIERARCH ESO ISS PBLA34 START | 114.729 |
| HIERARCH ESO ISS PBLA34 END | 114.87 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002145 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002145 |
| HIERARCH ESO ISS AMBI TEMP | 10.41 |
| HIERARCH ESO ISS AMBI FWHM START | 0.98 |
| HIERARCH ESO ISS AMBI FWHM END | 0.98 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |