Exposure
- ID
- GRAVI.2025-10-04T08:41:31.649_1
- Header ID
- GRAVI.2025-10-04T08:41:31.649
- 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 08:41:31.649
- UTC End
- 2025-10-04 08:47:31.649
- MJD Start
- 60952.36217186
- MJD End
- 60952.36633852666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0038805000000000003
- Ambient temperature (°C)
- 9.8
- Seeing (arcsec)
- 0.565
Observation
- ID
- 70653
- 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
- 52413
- Name
- 51Eri
- RA
- 69.402621
- DEC
- -2.47413
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 53.7410 | 53.9710 | 29.0000 | 29.5000 |
| U1-U3 | 98.1740 | 98.6260 | 35.5000 | 35.9000 |
| U1-U4 | 129.0640 | 129.4430 | 62.6810 | 62.8330 |
| U2-U3 | 45.1750 | 45.3840 | 43.1000 | 43.5000 |
| U2-U4 | 89.4280 | 89.3850 | 82.1300 | 82.1920 |
| U3-U4 | 61.3090 | 60.9810 | 109.7550 | 109.9320 |
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 | 60952.36217186 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402621 |
| DEC | -2.47413 |
| 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 | 53.741 |
| HIERARCH ESO ISS PBL12 END | 53.971 |
| HIERARCH ESO ISS PBLA12 START | 29.0 |
| HIERARCH ESO ISS PBLA12 END | 29.5 |
| HIERARCH ESO ISS PBL13 START | 98.174 |
| HIERARCH ESO ISS PBL13 END | 98.626 |
| HIERARCH ESO ISS PBLA13 START | 35.5 |
| HIERARCH ESO ISS PBLA13 END | 35.9 |
| HIERARCH ESO ISS PBL14 START | 129.064 |
| HIERARCH ESO ISS PBL14 END | 129.443 |
| HIERARCH ESO ISS PBLA14 START | 62.681 |
| HIERARCH ESO ISS PBLA14 END | 62.833 |
| HIERARCH ESO ISS PBL23 START | 45.175 |
| HIERARCH ESO ISS PBL23 END | 45.384 |
| HIERARCH ESO ISS PBLA23 START | 43.1 |
| HIERARCH ESO ISS PBLA23 END | 43.5 |
| HIERARCH ESO ISS PBL24 START | 89.428 |
| HIERARCH ESO ISS PBL24 END | 89.385 |
| HIERARCH ESO ISS PBLA24 START | 82.13 |
| HIERARCH ESO ISS PBLA24 END | 82.192 |
| HIERARCH ESO ISS PBL34 START | 61.309 |
| HIERARCH ESO ISS PBL34 END | 60.981 |
| HIERARCH ESO ISS PBLA34 START | 109.755 |
| HIERARCH ESO ISS PBLA34 END | 109.932 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002935 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004826 |
| HIERARCH ESO ISS AMBI TEMP | 9.8 |
| HIERARCH ESO ISS AMBI FWHM START | 0.64 |
| HIERARCH ESO ISS AMBI FWHM END | 0.49 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |