Exposure
- ID
- GRAVI.2025-10-04T08:48:19.667_1
- Header ID
- GRAVI.2025-10-04T08:48:19.667
- Date updated
- 2025-10-04 08:55:53 UTC+0000
- Release date
- 2026-04-02 08:55:53 UTC+0000
- UTC Start
- 2025-10-04 08:48:19.667
- UTC End
- 2025-10-04 08:48:48.467
- MJD Start
- 60952.36689429
- MJD End
- 60952.36722762333
- Exposure time (s)
- 28.8
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004580000000000001
- Ambient temperature (°C)
- 9.78
- Seeing (arcsec)
- 0.505
Observation
- ID
- 70654
- 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
- 52414
- Name
- 51Eri
- RA
- 69.402622
- DEC
- -2.47412
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 53.9910 | 54.0210 | 29.6000 | 29.6000 |
| U1-U3 | 98.6640 | 98.7230 | 35.9000 | 36.0000 |
| U1-U4 | 129.4720 | 129.5170 | 62.8460 | 62.8650 |
| U2-U3 | 45.4010 | 45.4280 | 43.5000 | 43.5000 |
| U2-U4 | 89.3780 | 89.3670 | 82.1980 | 82.2050 |
| U3-U4 | 60.9510 | 60.9040 | 109.9480 | 109.9730 |
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 | 60952.36689429 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402622 |
| DEC | -2.47412 |
| 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 | 53.991 |
| HIERARCH ESO ISS PBL12 END | 54.021 |
| HIERARCH ESO ISS PBLA12 START | 29.6 |
| HIERARCH ESO ISS PBLA12 END | 29.6 |
| HIERARCH ESO ISS PBL13 START | 98.664 |
| HIERARCH ESO ISS PBL13 END | 98.723 |
| HIERARCH ESO ISS PBLA13 START | 35.9 |
| HIERARCH ESO ISS PBLA13 END | 36.0 |
| HIERARCH ESO ISS PBL14 START | 129.472 |
| HIERARCH ESO ISS PBL14 END | 129.517 |
| HIERARCH ESO ISS PBLA14 START | 62.846 |
| HIERARCH ESO ISS PBLA14 END | 62.865 |
| HIERARCH ESO ISS PBL23 START | 45.401 |
| HIERARCH ESO ISS PBL23 END | 45.428 |
| HIERARCH ESO ISS PBLA23 START | 43.5 |
| HIERARCH ESO ISS PBLA23 END | 43.5 |
| HIERARCH ESO ISS PBL24 START | 89.378 |
| HIERARCH ESO ISS PBL24 END | 89.367 |
| HIERARCH ESO ISS PBLA24 START | 82.198 |
| HIERARCH ESO ISS PBLA24 END | 82.205 |
| HIERARCH ESO ISS PBL34 START | 60.951 |
| HIERARCH ESO ISS PBL34 END | 60.904 |
| HIERARCH ESO ISS PBLA34 START | 109.948 |
| HIERARCH ESO ISS PBLA34 END | 109.973 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004826 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004334 |
| HIERARCH ESO ISS AMBI TEMP | 9.78 |
| HIERARCH ESO ISS AMBI FWHM START | 0.49 |
| HIERARCH ESO ISS AMBI FWHM END | 0.52 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |