Exposure
- ID
- GRAVI.2025-10-04T06:56:58.382_1
- Header ID
- GRAVI.2025-10-04T06:56:58.382
- Date updated
- 2025-10-04 07:10:43 UTC+0000
- Release date
- 2026-04-02 07:10:43 UTC+0000
- UTC Start
- 2025-10-04 06:56:58.382
- UTC End
- 2025-10-04 07:02:58.382
- MJD Start
- 60952.28956461
- MJD End
- 60952.293731276666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0042835
- Ambient temperature (°C)
- 10.12
- Seeing (arcsec)
- 0.53
Observation
- ID
- 70640
- 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
- 52400
- Name
- 51Eri
- RA
- 69.402603
- DEC
- -2.47403
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 49.6320 | 49.8550 | 17.3000 | 18.2000 |
| U1-U3 | 88.8270 | 89.4050 | 24.4000 | 25.3000 |
| U1-U4 | 112.3660 | 113.8430 | 56.9430 | 57.4910 |
| U2-U3 | 40.0570 | 40.4130 | 33.3000 | 34.1000 |
| U2-U4 | 80.6370 | 81.6460 | 80.0750 | 80.2640 |
| U3-U4 | 60.6990 | 61.0600 | 108.8300 | 108.7800 |
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 | 60952.28956461 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402603 |
| DEC | -2.47403 |
| 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 | 49.632 |
| HIERARCH ESO ISS PBL12 END | 49.855 |
| HIERARCH ESO ISS PBLA12 START | 17.3 |
| HIERARCH ESO ISS PBLA12 END | 18.2 |
| HIERARCH ESO ISS PBL13 START | 88.827 |
| HIERARCH ESO ISS PBL13 END | 89.405 |
| HIERARCH ESO ISS PBLA13 START | 24.4 |
| HIERARCH ESO ISS PBLA13 END | 25.3 |
| HIERARCH ESO ISS PBL14 START | 112.366 |
| HIERARCH ESO ISS PBL14 END | 113.843 |
| HIERARCH ESO ISS PBLA14 START | 56.943 |
| HIERARCH ESO ISS PBLA14 END | 57.491 |
| HIERARCH ESO ISS PBL23 START | 40.057 |
| HIERARCH ESO ISS PBL23 END | 40.413 |
| HIERARCH ESO ISS PBLA23 START | 33.3 |
| HIERARCH ESO ISS PBLA23 END | 34.1 |
| HIERARCH ESO ISS PBL24 START | 80.637 |
| HIERARCH ESO ISS PBL24 END | 81.646 |
| HIERARCH ESO ISS PBLA24 START | 80.075 |
| HIERARCH ESO ISS PBLA24 END | 80.264 |
| HIERARCH ESO ISS PBL34 START | 60.699 |
| HIERARCH ESO ISS PBL34 END | 61.06 |
| HIERARCH ESO ISS PBLA34 START | 108.83 |
| HIERARCH ESO ISS PBLA34 END | 108.78 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004597 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00397 |
| HIERARCH ESO ISS AMBI TEMP | 10.12 |
| HIERARCH ESO ISS AMBI FWHM START | 0.52 |
| HIERARCH ESO ISS AMBI FWHM END | 0.54 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |