Exposure
- ID
- GRAVI.2025-10-04T07:33:16.475_1
- Header ID
- GRAVI.2025-10-04T07:33:16.475
- Date updated
- 2025-10-04 07:45:49 UTC+0000
- Release date
- 2026-04-02 07:45:48 UTC+0000
- UTC Start
- 2025-10-04 07:33:16.475
- UTC End
- 2025-10-04 07:39:16.475
- MJD Start
- 60952.31477402
- MJD End
- 60952.318940686666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0035865000000000003
- Ambient temperature (°C)
- 10.18
- Seeing (arcsec)
- 0.565
Observation
- ID
- 70644
- Category
- science
- Program ID
- 111.24MN.004
- Program Title
- MONITORING 51 ERI B FOR A PERTURBING INNER COMPANION
- Program Type
- Monitoring
- PI / COI
- BALMER / KAMMERER / PUEYO / LACOUR / MAIRE / WANG / NOWAK / STOLKER / MOLLIERE / CORREIA / HINKLEY / POURRÉ / BOURDAROT / OTTEN / KERVELLA / CASELLI / BENISTY / SAMLAND / RICKMAN
Target
- ID
- 52404
- Name
- 51Eri
- RA
- 69.40259
- DEC
- -2.47406
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 51.0110 | 51.2630 | 22.1000 | 22.8000 |
| U1-U3 | 92.2450 | 92.8370 | 29.1000 | 29.8000 |
| U1-U4 | 120.1980 | 121.3500 | 59.7100 | 60.0930 |
| U2-U3 | 42.0850 | 42.4170 | 37.6000 | 38.3000 |
| U2-U4 | 85.6750 | 86.3370 | 81.0380 | 81.1730 |
| U3-U4 | 62.2260 | 62.3480 | 108.7310 | 108.7590 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24MN.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60952.31477402 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.40259 |
| DEC | -2.47406 |
| 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 | 376.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 51.011 |
| HIERARCH ESO ISS PBL12 END | 51.263 |
| HIERARCH ESO ISS PBLA12 START | 22.1 |
| HIERARCH ESO ISS PBLA12 END | 22.8 |
| HIERARCH ESO ISS PBL13 START | 92.245 |
| HIERARCH ESO ISS PBL13 END | 92.837 |
| HIERARCH ESO ISS PBLA13 START | 29.1 |
| HIERARCH ESO ISS PBLA13 END | 29.8 |
| HIERARCH ESO ISS PBL14 START | 120.198 |
| HIERARCH ESO ISS PBL14 END | 121.35 |
| HIERARCH ESO ISS PBLA14 START | 59.71 |
| HIERARCH ESO ISS PBLA14 END | 60.093 |
| HIERARCH ESO ISS PBL23 START | 42.085 |
| HIERARCH ESO ISS PBL23 END | 42.417 |
| HIERARCH ESO ISS PBLA23 START | 37.6 |
| HIERARCH ESO ISS PBLA23 END | 38.3 |
| HIERARCH ESO ISS PBL24 START | 85.675 |
| HIERARCH ESO ISS PBL24 END | 86.337 |
| HIERARCH ESO ISS PBLA24 START | 81.038 |
| HIERARCH ESO ISS PBLA24 END | 81.173 |
| HIERARCH ESO ISS PBL34 START | 62.226 |
| HIERARCH ESO ISS PBL34 END | 62.348 |
| HIERARCH ESO ISS PBLA34 START | 108.731 |
| HIERARCH ESO ISS PBLA34 END | 108.759 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005178 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.001995 |
| HIERARCH ESO ISS AMBI TEMP | 10.18 |
| HIERARCH ESO ISS AMBI FWHM START | 0.4 |
| HIERARCH ESO ISS AMBI FWHM END | 0.73 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |