Exposure
- ID
- GRAVI.2025-10-04T06:42:04.344_2
- Header ID
- GRAVI.2025-10-04T06:42:04.344
- Date updated
- 2025-10-04 06:55:46 UTC+0000
- Release date
- 2026-04-02 06:55:46 UTC+0000
- UTC Start
- 2025-10-04 06:42:04.344
- UTC End
- 2025-10-04 06:48:04.344
- MJD Start
- 60952.27921695
- MJD End
- 60952.28338361667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004333
- Ambient temperature (°C)
- 10.09
- Seeing (arcsec)
- 0.59
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 | 49.1290 | 49.3340 | 15.1000 | 16.0000 |
| U1-U3 | 87.4790 | 88.0370 | 22.2000 | 23.2000 |
| U1-U4 | 108.6330 | 110.2310 | 55.4890 | 56.1240 |
| U2-U3 | 39.2020 | 39.5600 | 31.2000 | 32.1000 |
| U2-U4 | 77.9890 | 79.1390 | 79.5730 | 79.7920 |
| U3-U4 | 59.6710 | 60.1300 | 109.0070 | 108.9230 |
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 | 60952.27921695 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402613 |
| 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 | 376.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 49.129 |
| HIERARCH ESO ISS PBL12 END | 49.334 |
| HIERARCH ESO ISS PBLA12 START | 15.1 |
| HIERARCH ESO ISS PBLA12 END | 16.0 |
| HIERARCH ESO ISS PBL13 START | 87.479 |
| HIERARCH ESO ISS PBL13 END | 88.037 |
| HIERARCH ESO ISS PBLA13 START | 22.2 |
| HIERARCH ESO ISS PBLA13 END | 23.2 |
| HIERARCH ESO ISS PBL14 START | 108.633 |
| HIERARCH ESO ISS PBL14 END | 110.231 |
| HIERARCH ESO ISS PBLA14 START | 55.489 |
| HIERARCH ESO ISS PBLA14 END | 56.124 |
| HIERARCH ESO ISS PBL23 START | 39.202 |
| HIERARCH ESO ISS PBL23 END | 39.56 |
| HIERARCH ESO ISS PBLA23 START | 31.2 |
| HIERARCH ESO ISS PBLA23 END | 32.1 |
| HIERARCH ESO ISS PBL24 START | 77.989 |
| HIERARCH ESO ISS PBL24 END | 79.139 |
| HIERARCH ESO ISS PBLA24 START | 79.573 |
| HIERARCH ESO ISS PBLA24 END | 79.792 |
| HIERARCH ESO ISS PBL34 START | 59.671 |
| HIERARCH ESO ISS PBL34 END | 60.13 |
| HIERARCH ESO ISS PBLA34 START | 109.007 |
| HIERARCH ESO ISS PBLA34 END | 108.923 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004968 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003698 |
| HIERARCH ESO ISS AMBI TEMP | 10.09 |
| HIERARCH ESO ISS AMBI FWHM START | 0.58 |
| HIERARCH ESO ISS AMBI FWHM END | 0.6 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |