Exposure
- ID
- GRAVI.2025-10-04T06:55:34.379_2
- Header ID
- GRAVI.2025-10-04T06:55:34.379
- Date updated
- 2025-10-04 07:00:37 UTC+0000
- Release date
- 2026-04-02 07:00:37 UTC+0000
- UTC Start
- 2025-10-04 06:55:34.379
- UTC End
- 2025-10-04 06:56:03.179
- MJD Start
- 60952.28859235
- MJD End
- 60952.28892568333
- Exposure time (s)
- 28.8
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004597
- Ambient temperature (°C)
- 10.12
- Seeing (arcsec)
- 0.52
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 | 49.5800 | 49.6110 | 17.1000 | 17.2000 |
| U1-U3 | 88.6920 | 88.7720 | 24.2000 | 24.3000 |
| U1-U4 | 112.0110 | 112.2210 | 56.8090 | 56.8880 |
| U2-U3 | 39.9730 | 40.0230 | 33.1000 | 33.2000 |
| U2-U4 | 80.3910 | 80.5370 | 80.0290 | 80.0560 |
| U3-U4 | 60.6080 | 60.6620 | 108.8440 | 108.8360 |
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 | 60952.28859235 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402604 |
| 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 | 55.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 96 |
| HIERARCH ESO ISS PBL12 START | 49.58 |
| HIERARCH ESO ISS PBL12 END | 49.611 |
| HIERARCH ESO ISS PBLA12 START | 17.1 |
| HIERARCH ESO ISS PBLA12 END | 17.2 |
| HIERARCH ESO ISS PBL13 START | 88.692 |
| HIERARCH ESO ISS PBL13 END | 88.772 |
| HIERARCH ESO ISS PBLA13 START | 24.2 |
| HIERARCH ESO ISS PBLA13 END | 24.3 |
| HIERARCH ESO ISS PBL14 START | 112.011 |
| HIERARCH ESO ISS PBL14 END | 112.221 |
| HIERARCH ESO ISS PBLA14 START | 56.809 |
| HIERARCH ESO ISS PBLA14 END | 56.888 |
| HIERARCH ESO ISS PBL23 START | 39.973 |
| HIERARCH ESO ISS PBL23 END | 40.023 |
| HIERARCH ESO ISS PBLA23 START | 33.1 |
| HIERARCH ESO ISS PBLA23 END | 33.2 |
| HIERARCH ESO ISS PBL24 START | 80.391 |
| HIERARCH ESO ISS PBL24 END | 80.537 |
| HIERARCH ESO ISS PBLA24 START | 80.029 |
| HIERARCH ESO ISS PBLA24 END | 80.056 |
| HIERARCH ESO ISS PBL34 START | 60.608 |
| HIERARCH ESO ISS PBL34 END | 60.662 |
| HIERARCH ESO ISS PBLA34 START | 108.844 |
| HIERARCH ESO ISS PBLA34 END | 108.836 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004597 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004597 |
| HIERARCH ESO ISS AMBI TEMP | 10.12 |
| HIERARCH ESO ISS AMBI FWHM START | 0.52 |
| HIERARCH ESO ISS AMBI FWHM END | 0.52 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |