Exposure
- ID
- GRAVI.2025-10-04T07:53:16.526_2
- Header ID
- GRAVI.2025-10-04T07:53:16.526
- Date updated
- 2025-10-04 08:05:46 UTC+0000
- Release date
- 2026-04-02 08:05:46 UTC+0000
- UTC Start
- 2025-10-04 07:53:16.526
- UTC End
- 2025-10-04 07:59:16.526
- MJD Start
- 60952.3286635
- MJD End
- 60952.33283016666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002428
- Ambient temperature (°C)
- 10.32
- Seeing (arcsec)
- 0.64
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 | 51.8230 | 52.0770 | 24.4000 | 25.1000 |
| U1-U3 | 94.1140 | 94.6820 | 31.3000 | 31.9000 |
| U1-U4 | 123.6490 | 124.5860 | 60.8480 | 61.1540 |
| U2-U3 | 43.1190 | 43.4230 | 39.6000 | 40.1000 |
| U2-U4 | 87.5670 | 88.0250 | 81.4430 | 81.5530 |
| U3-U4 | 62.4700 | 62.4590 | 108.8660 | 108.9350 |
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 | 60952.3286635 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402593 |
| DEC | -2.47407 |
| 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 | 51.823 |
| HIERARCH ESO ISS PBL12 END | 52.077 |
| HIERARCH ESO ISS PBLA12 START | 24.4 |
| HIERARCH ESO ISS PBLA12 END | 25.1 |
| HIERARCH ESO ISS PBL13 START | 94.114 |
| HIERARCH ESO ISS PBL13 END | 94.682 |
| HIERARCH ESO ISS PBLA13 START | 31.3 |
| HIERARCH ESO ISS PBLA13 END | 31.9 |
| HIERARCH ESO ISS PBL14 START | 123.649 |
| HIERARCH ESO ISS PBL14 END | 124.586 |
| HIERARCH ESO ISS PBLA14 START | 60.848 |
| HIERARCH ESO ISS PBLA14 END | 61.154 |
| HIERARCH ESO ISS PBL23 START | 43.119 |
| HIERARCH ESO ISS PBL23 END | 43.423 |
| HIERARCH ESO ISS PBLA23 START | 39.6 |
| HIERARCH ESO ISS PBLA23 END | 40.1 |
| HIERARCH ESO ISS PBL24 START | 87.567 |
| HIERARCH ESO ISS PBL24 END | 88.025 |
| HIERARCH ESO ISS PBLA24 START | 81.443 |
| HIERARCH ESO ISS PBLA24 END | 81.553 |
| HIERARCH ESO ISS PBL34 START | 62.47 |
| HIERARCH ESO ISS PBL34 END | 62.459 |
| HIERARCH ESO ISS PBLA34 START | 108.866 |
| HIERARCH ESO ISS PBLA34 END | 108.935 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002362 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002494 |
| HIERARCH ESO ISS AMBI TEMP | 10.32 |
| HIERARCH ESO ISS AMBI FWHM START | 0.63 |
| HIERARCH ESO ISS AMBI FWHM END | 0.65 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |