Exposure
- ID
- GRAVI.2025-10-04T06:28:40.310_1
- Header ID
- GRAVI.2025-10-04T06:28:40.310
- Date updated
- 2025-10-04 06:45:46 UTC+0000
- Release date
- 2026-04-02 06:45:46 UTC+0000
- UTC Start
- 2025-10-04 06:28:40.310
- UTC End
- 2025-10-04 06:34:40.310
- MJD Start
- 60952.269911
- MJD End
- 60952.27407766667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004940999999999999
- Ambient temperature (°C)
- 10.07
- Seeing (arcsec)
- 0.515
Observation
- ID
- 70636
- 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
- 52396
- Name
- 51Eri
- RA
- 69.402617
- DEC
- -2.47402
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 48.7250 | 48.9080 | 13.1000 | 14.0000 |
| U1-U3 | 86.3340 | 86.8590 | 20.1000 | 21.1000 |
| U1-U4 | 105.0840 | 106.7630 | 54.0020 | 54.7190 |
| U2-U3 | 38.4430 | 38.7960 | 29.1000 | 30.1000 |
| U2-U4 | 75.3480 | 76.6110 | 79.0580 | 79.3070 |
| U3-U4 | 58.5600 | 59.1010 | 109.2390 | 109.1220 |
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 | 60952.269911 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402617 |
| DEC | -2.47402 |
| 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 | 48.725 |
| HIERARCH ESO ISS PBL12 END | 48.908 |
| HIERARCH ESO ISS PBLA12 START | 13.1 |
| HIERARCH ESO ISS PBLA12 END | 14.0 |
| HIERARCH ESO ISS PBL13 START | 86.334 |
| HIERARCH ESO ISS PBL13 END | 86.859 |
| HIERARCH ESO ISS PBLA13 START | 20.1 |
| HIERARCH ESO ISS PBLA13 END | 21.1 |
| HIERARCH ESO ISS PBL14 START | 105.084 |
| HIERARCH ESO ISS PBL14 END | 106.763 |
| HIERARCH ESO ISS PBLA14 START | 54.002 |
| HIERARCH ESO ISS PBLA14 END | 54.719 |
| HIERARCH ESO ISS PBL23 START | 38.443 |
| HIERARCH ESO ISS PBL23 END | 38.796 |
| HIERARCH ESO ISS PBLA23 START | 29.1 |
| HIERARCH ESO ISS PBLA23 END | 30.1 |
| HIERARCH ESO ISS PBL24 START | 75.348 |
| HIERARCH ESO ISS PBL24 END | 76.611 |
| HIERARCH ESO ISS PBLA24 START | 79.058 |
| HIERARCH ESO ISS PBLA24 END | 79.307 |
| HIERARCH ESO ISS PBL34 START | 58.56 |
| HIERARCH ESO ISS PBL34 END | 59.101 |
| HIERARCH ESO ISS PBLA34 START | 109.239 |
| HIERARCH ESO ISS PBLA34 END | 109.122 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.0055 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004382 |
| HIERARCH ESO ISS AMBI TEMP | 10.07 |
| HIERARCH ESO ISS AMBI FWHM START | 0.48 |
| HIERARCH ESO ISS AMBI FWHM END | 0.55 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |