Exposure
- ID
- GRAVI.2025-10-04T08:34:55.633_2
- Header ID
- GRAVI.2025-10-04T08:34:55.633
- Date updated
- 2025-10-04 08:50:52 UTC+0000
- Release date
- 2026-04-02 08:50:51 UTC+0000
- UTC Start
- 2025-10-04 08:34:55.633
- UTC End
- 2025-10-04 08:40:55.633
- MJD Start
- 60952.35758834
- MJD End
- 60952.36175500666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.00262
- Ambient temperature (°C)
- 9.84
- Seeing (arcsec)
- 0.69
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 | 53.4910 | 53.7270 | 28.5000 | 29.0000 |
| U1-U3 | 97.6740 | 98.1470 | 35.0000 | 35.4000 |
| U1-U4 | 128.5800 | 129.0390 | 62.4990 | 62.6710 |
| U2-U3 | 44.9380 | 45.1620 | 42.7000 | 43.1000 |
| U2-U4 | 89.4030 | 89.4290 | 82.0580 | 82.1260 |
| U3-U4 | 61.6120 | 61.3270 | 109.5840 | 109.7450 |
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 | 60952.35758834 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51Eri |
| HIERARCH ESO INS SOBJ NAME | 51Eri |
| RA | 69.402616 |
| DEC | -2.47412 |
| 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 | 53.491 |
| HIERARCH ESO ISS PBL12 END | 53.727 |
| HIERARCH ESO ISS PBLA12 START | 28.5 |
| HIERARCH ESO ISS PBLA12 END | 29.0 |
| HIERARCH ESO ISS PBL13 START | 97.674 |
| HIERARCH ESO ISS PBL13 END | 98.147 |
| HIERARCH ESO ISS PBLA13 START | 35.0 |
| HIERARCH ESO ISS PBLA13 END | 35.4 |
| HIERARCH ESO ISS PBL14 START | 128.58 |
| HIERARCH ESO ISS PBL14 END | 129.039 |
| HIERARCH ESO ISS PBLA14 START | 62.499 |
| HIERARCH ESO ISS PBLA14 END | 62.671 |
| HIERARCH ESO ISS PBL23 START | 44.938 |
| HIERARCH ESO ISS PBL23 END | 45.162 |
| HIERARCH ESO ISS PBLA23 START | 42.7 |
| HIERARCH ESO ISS PBLA23 END | 43.1 |
| HIERARCH ESO ISS PBL24 START | 89.403 |
| HIERARCH ESO ISS PBL24 END | 89.429 |
| HIERARCH ESO ISS PBLA24 START | 82.058 |
| HIERARCH ESO ISS PBLA24 END | 82.126 |
| HIERARCH ESO ISS PBL34 START | 61.612 |
| HIERARCH ESO ISS PBL34 END | 61.327 |
| HIERARCH ESO ISS PBLA34 START | 109.584 |
| HIERARCH ESO ISS PBLA34 END | 109.745 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002305 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002935 |
| HIERARCH ESO ISS AMBI TEMP | 9.84 |
| HIERARCH ESO ISS AMBI FWHM START | 0.74 |
| HIERARCH ESO ISS AMBI FWHM END | 0.64 |
| HIERARCH ESO FT ROBJ NAME | 51Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |