Exposure
- ID
- GRAVI.2025-10-04T07:30:31.469_1
- Header ID
- GRAVI.2025-10-04T07:30:31.469
- Date updated
- 2025-10-04 07:40:31 UTC+0000
- Release date
- 2026-04-02 07:40:31 UTC+0000
- UTC Start
- 2025-10-04 07:30:31.469
- UTC End
- 2025-10-04 07:31:00.269
- MJD Start
- 60952.31286422
- MJD End
- 60952.31319755333
- Exposure time (s)
- 28.8
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004511
- Ambient temperature (°C)
- 10.19
- Seeing (arcsec)
- 0.5
Observation
- ID
- 70643
- 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
- 52403
- Name
- 51Eri
- RA
- 69.402595
- DEC
- -2.47405
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 50.9000 | 50.9330 | 21.7000 | 21.8000 |
| U1-U3 | 91.9830 | 92.0620 | 28.8000 | 28.9000 |
| U1-U4 | 119.6690 | 119.8290 | 59.5320 | 59.5860 |
| U2-U3 | 41.9360 | 41.9810 | 37.3000 | 37.4000 |
| U2-U4 | 85.3620 | 85.4580 | 80.9750 | 80.9940 |
| U3-U4 | 62.1580 | 62.1800 | 108.7220 | 108.7250 |
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 | 60952.31286422 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402595 |
| DEC | -2.47405 |
| 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 | 50.9 |
| HIERARCH ESO ISS PBL12 END | 50.933 |
| HIERARCH ESO ISS PBLA12 START | 21.7 |
| HIERARCH ESO ISS PBLA12 END | 21.8 |
| HIERARCH ESO ISS PBL13 START | 91.983 |
| HIERARCH ESO ISS PBL13 END | 92.062 |
| HIERARCH ESO ISS PBLA13 START | 28.8 |
| HIERARCH ESO ISS PBLA13 END | 28.9 |
| HIERARCH ESO ISS PBL14 START | 119.669 |
| HIERARCH ESO ISS PBL14 END | 119.829 |
| HIERARCH ESO ISS PBLA14 START | 59.532 |
| HIERARCH ESO ISS PBLA14 END | 59.586 |
| HIERARCH ESO ISS PBL23 START | 41.936 |
| HIERARCH ESO ISS PBL23 END | 41.981 |
| HIERARCH ESO ISS PBLA23 START | 37.3 |
| HIERARCH ESO ISS PBLA23 END | 37.4 |
| HIERARCH ESO ISS PBL24 START | 85.362 |
| HIERARCH ESO ISS PBL24 END | 85.458 |
| HIERARCH ESO ISS PBLA24 START | 80.975 |
| HIERARCH ESO ISS PBLA24 END | 80.994 |
| HIERARCH ESO ISS PBL34 START | 62.158 |
| HIERARCH ESO ISS PBL34 END | 62.18 |
| HIERARCH ESO ISS PBLA34 START | 108.722 |
| HIERARCH ESO ISS PBLA34 END | 108.725 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004517 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004505 |
| HIERARCH ESO ISS AMBI TEMP | 10.19 |
| HIERARCH ESO ISS AMBI FWHM START | 0.5 |
| HIERARCH ESO ISS AMBI FWHM END | 0.5 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |