Exposure
- ID
- GRAVI.2025-10-04T07:59:55.543_2
- Header ID
- GRAVI.2025-10-04T07:59:55.543
- Date updated
- 2025-10-04 08:16:07 UTC+0000
- Release date
- 2026-04-02 08:16:07 UTC+0000
- UTC Start
- 2025-10-04 07:59:55.543
- UTC End
- 2025-10-04 08:05:55.543
- MJD Start
- 60952.33328175
- MJD End
- 60952.33744841666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0033215
- Ambient temperature (°C)
- 10.31
- Seeing (arcsec)
- 0.56
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 | 52.0940 | 52.3490 | 25.1000 | 25.8000 |
| U1-U3 | 94.7180 | 95.2780 | 31.9000 | 32.5000 |
| U1-U4 | 124.6440 | 125.5130 | 61.1730 | 61.4570 |
| U2-U3 | 43.4420 | 43.7360 | 40.2000 | 40.7000 |
| U2-U4 | 88.0520 | 88.4430 | 81.5600 | 81.6640 |
| U3-U4 | 62.4570 | 62.4010 | 108.9400 | 109.0240 |
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 | 60952.33328175 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402589 |
| DEC | -2.47408 |
| 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 | 52.094 |
| HIERARCH ESO ISS PBL12 END | 52.349 |
| HIERARCH ESO ISS PBLA12 START | 25.1 |
| HIERARCH ESO ISS PBLA12 END | 25.8 |
| HIERARCH ESO ISS PBL13 START | 94.718 |
| HIERARCH ESO ISS PBL13 END | 95.278 |
| HIERARCH ESO ISS PBLA13 START | 31.9 |
| HIERARCH ESO ISS PBLA13 END | 32.5 |
| HIERARCH ESO ISS PBL14 START | 124.644 |
| HIERARCH ESO ISS PBL14 END | 125.513 |
| HIERARCH ESO ISS PBLA14 START | 61.173 |
| HIERARCH ESO ISS PBLA14 END | 61.457 |
| HIERARCH ESO ISS PBL23 START | 43.442 |
| HIERARCH ESO ISS PBL23 END | 43.736 |
| HIERARCH ESO ISS PBLA23 START | 40.2 |
| HIERARCH ESO ISS PBLA23 END | 40.7 |
| HIERARCH ESO ISS PBL24 START | 88.052 |
| HIERARCH ESO ISS PBL24 END | 88.443 |
| HIERARCH ESO ISS PBLA24 START | 81.56 |
| HIERARCH ESO ISS PBLA24 END | 81.664 |
| HIERARCH ESO ISS PBL34 START | 62.457 |
| HIERARCH ESO ISS PBL34 END | 62.401 |
| HIERARCH ESO ISS PBLA34 START | 108.94 |
| HIERARCH ESO ISS PBLA34 END | 109.024 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003177 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003466 |
| HIERARCH ESO ISS AMBI TEMP | 10.31 |
| HIERARCH ESO ISS AMBI FWHM START | 0.56 |
| HIERARCH ESO ISS AMBI FWHM END | 0.56 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |