Exposure
- ID
- GRAVI.2025-10-04T07:39:52.492_1
- Header ID
- GRAVI.2025-10-04T07:39:52.492
- Date updated
- 2025-10-04 07:55:41 UTC+0000
- Release date
- 2026-04-02 07:55:41 UTC+0000
- UTC Start
- 2025-10-04 07:39:52.492
- UTC End
- 2025-10-04 07:45:52.492
- MJD Start
- 60952.31935755
- MJD End
- 60952.32352421666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0023214999999999998
- Ambient temperature (°C)
- 10.23
- Seeing (arcsec)
- 0.675
Observation
- ID
- 70645
- 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
- 52405
- Name
- 51Eri
- RA
- 69.402593
- DEC
- -2.47406
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 51.2770 | 51.5310 | 22.9000 | 23.6000 |
| U1-U3 | 92.8680 | 93.4540 | 29.8000 | 30.5000 |
| U1-U4 | 121.4100 | 122.4950 | 60.1130 | 60.4700 |
| U2-U3 | 42.4350 | 42.7600 | 38.3000 | 38.9000 |
| U2-U4 | 86.3700 | 86.9660 | 81.1800 | 81.3070 |
| U3-U4 | 62.3540 | 62.4320 | 108.7600 | 108.8020 |
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 | 60952.31935755 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402593 |
| DEC | -2.47406 |
| 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 | 51.277 |
| HIERARCH ESO ISS PBL12 END | 51.531 |
| HIERARCH ESO ISS PBLA12 START | 22.9 |
| HIERARCH ESO ISS PBLA12 END | 23.6 |
| HIERARCH ESO ISS PBL13 START | 92.868 |
| HIERARCH ESO ISS PBL13 END | 93.454 |
| HIERARCH ESO ISS PBLA13 START | 29.8 |
| HIERARCH ESO ISS PBLA13 END | 30.5 |
| HIERARCH ESO ISS PBL14 START | 121.41 |
| HIERARCH ESO ISS PBL14 END | 122.495 |
| HIERARCH ESO ISS PBLA14 START | 60.113 |
| HIERARCH ESO ISS PBLA14 END | 60.47 |
| HIERARCH ESO ISS PBL23 START | 42.435 |
| HIERARCH ESO ISS PBL23 END | 42.76 |
| HIERARCH ESO ISS PBLA23 START | 38.3 |
| HIERARCH ESO ISS PBLA23 END | 38.9 |
| HIERARCH ESO ISS PBL24 START | 86.37 |
| HIERARCH ESO ISS PBL24 END | 86.966 |
| HIERARCH ESO ISS PBLA24 START | 81.18 |
| HIERARCH ESO ISS PBLA24 END | 81.307 |
| HIERARCH ESO ISS PBL34 START | 62.354 |
| HIERARCH ESO ISS PBL34 END | 62.432 |
| HIERARCH ESO ISS PBLA34 START | 108.76 |
| HIERARCH ESO ISS PBLA34 END | 108.802 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002136 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002507 |
| HIERARCH ESO ISS AMBI TEMP | 10.23 |
| HIERARCH ESO ISS AMBI FWHM START | 0.72 |
| HIERARCH ESO ISS AMBI FWHM END | 0.63 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |