Exposure
- ID
- GRAVI.2025-10-04T07:23:43.451_2
- Header ID
- GRAVI.2025-10-04T07:23:43.451
- Date updated
- 2025-10-04 07:35:52 UTC+0000
- Release date
- 2026-04-02 07:35:52 UTC+0000
- UTC Start
- 2025-10-04 07:23:43.451
- UTC End
- 2025-10-04 07:29:43.451
- MJD Start
- 60952.30814179
- MJD End
- 60952.31230845667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0040575
- Ambient temperature (°C)
- 10.09
- Seeing (arcsec)
- 0.49
Observation
- ID
- 62701
- 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
- 46641
- Name
- 51Eri
- RA
- 69.40055416666667
- DEC
- -2.473548611111111
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- U1 U2 U3 U4
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 50.6310 | 50.8790 | 20.9000 | 21.7000 |
| U1-U3 | 91.3380 | 91.9330 | 28.0000 | 28.7000 |
| U1-U4 | 118.3190 | 119.5660 | 59.0740 | 59.4970 |
| U2-U3 | 41.5640 | 41.9070 | 36.6000 | 37.3000 |
| U2-U4 | 84.5440 | 85.3010 | 80.8150 | 80.9630 |
| U3-U4 | 61.9580 | 62.1450 | 108.7130 | 108.7210 |
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 | 60952.30814179 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402593 |
| DEC | -2.47404 |
| 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 | 50.631 |
| HIERARCH ESO ISS PBL12 END | 50.879 |
| HIERARCH ESO ISS PBLA12 START | 20.9 |
| HIERARCH ESO ISS PBLA12 END | 21.7 |
| HIERARCH ESO ISS PBL13 START | 91.338 |
| HIERARCH ESO ISS PBL13 END | 91.933 |
| HIERARCH ESO ISS PBLA13 START | 28.0 |
| HIERARCH ESO ISS PBLA13 END | 28.7 |
| HIERARCH ESO ISS PBL14 START | 118.319 |
| HIERARCH ESO ISS PBL14 END | 119.566 |
| HIERARCH ESO ISS PBLA14 START | 59.074 |
| HIERARCH ESO ISS PBLA14 END | 59.497 |
| HIERARCH ESO ISS PBL23 START | 41.564 |
| HIERARCH ESO ISS PBL23 END | 41.907 |
| HIERARCH ESO ISS PBLA23 START | 36.6 |
| HIERARCH ESO ISS PBLA23 END | 37.3 |
| HIERARCH ESO ISS PBL24 START | 84.544 |
| HIERARCH ESO ISS PBL24 END | 85.301 |
| HIERARCH ESO ISS PBLA24 START | 80.815 |
| HIERARCH ESO ISS PBLA24 END | 80.963 |
| HIERARCH ESO ISS PBL34 START | 61.958 |
| HIERARCH ESO ISS PBL34 END | 62.145 |
| HIERARCH ESO ISS PBLA34 START | 108.713 |
| HIERARCH ESO ISS PBLA34 END | 108.721 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003598 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004517 |
| HIERARCH ESO ISS AMBI TEMP | 10.09 |
| HIERARCH ESO ISS AMBI FWHM START | 0.48 |
| HIERARCH ESO ISS AMBI FWHM END | 0.5 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |