Exposure
- ID
- GRAVI.2025-11-06T07:43:00.373_2
- Header ID
- GRAVI.2025-11-06T07:43:00.373
- Date updated
- 2025-11-06 07:50:52 UTC+0000
- Release date
- 2026-11-06 07:50:52 UTC+0000
- UTC Start
- 2025-11-06 07:43:00.373
- UTC End
- 2025-11-06 07:43:29.173
- MJD Start
- 60985.3215321
- MJD End
- 60985.32186543333
- Exposure time (s)
- 28.8
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002969
- Ambient temperature (°C)
- 10.9
- Seeing (arcsec)
- 0.78
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 | 55.8860 | 55.9030 | 33.5000 | 33.5000 |
| U1-U3 | 101.9220 | 101.9460 | 39.1000 | 39.1000 |
| U1-U4 | 128.8440 | 128.7820 | 63.3930 | 63.3880 |
| U2-U3 | 46.6160 | 46.6200 | 45.7000 | 45.7000 |
| U2-U4 | 85.0900 | 84.9910 | 82.5080 | 82.5080 |
| U3-U4 | 55.3120 | 55.2140 | 112.8110 | 112.8630 |
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 | 60985.3215321 |
| 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 | 55.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 96 |
| HIERARCH ESO ISS PBL12 START | 55.886 |
| HIERARCH ESO ISS PBL12 END | 55.903 |
| HIERARCH ESO ISS PBLA12 START | 33.5 |
| HIERARCH ESO ISS PBLA12 END | 33.5 |
| HIERARCH ESO ISS PBL13 START | 101.922 |
| HIERARCH ESO ISS PBL13 END | 101.946 |
| HIERARCH ESO ISS PBLA13 START | 39.1 |
| HIERARCH ESO ISS PBLA13 END | 39.1 |
| HIERARCH ESO ISS PBL14 START | 128.844 |
| HIERARCH ESO ISS PBL14 END | 128.782 |
| HIERARCH ESO ISS PBLA14 START | 63.393 |
| HIERARCH ESO ISS PBLA14 END | 63.388 |
| HIERARCH ESO ISS PBL23 START | 46.616 |
| HIERARCH ESO ISS PBL23 END | 46.62 |
| HIERARCH ESO ISS PBLA23 START | 45.7 |
| HIERARCH ESO ISS PBLA23 END | 45.7 |
| HIERARCH ESO ISS PBL24 START | 85.09 |
| HIERARCH ESO ISS PBL24 END | 84.991 |
| HIERARCH ESO ISS PBLA24 START | 82.508 |
| HIERARCH ESO ISS PBLA24 END | 82.508 |
| HIERARCH ESO ISS PBL34 START | 55.312 |
| HIERARCH ESO ISS PBL34 END | 55.214 |
| HIERARCH ESO ISS PBLA34 START | 112.811 |
| HIERARCH ESO ISS PBLA34 END | 112.863 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002969 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002969 |
| HIERARCH ESO ISS AMBI TEMP | 10.9 |
| HIERARCH ESO ISS AMBI FWHM START | 0.78 |
| HIERARCH ESO ISS AMBI FWHM END | 0.78 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |