Exposure
- ID
- GRAVI.2025-11-12T04:35:03.559_2
- Header ID
- GRAVI.2025-11-12T04:35:03.559
- Date updated
- 2025-11-12 04:50:46 UTC+0000
- Release date
- 2026-11-12 04:50:46 UTC+0000
- UTC Start
- 2025-11-12 04:35:03.559
- UTC End
- 2025-11-12 04:41:43.559
- MJD Start
- 60991.19101342
- MJD End
- 60991.19564304963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004052
- Ambient temperature (°C)
- 14.41
- Seeing (arcsec)
- 0.8
Observation
- ID
- 71546
- Category
- science
- Program ID
- 116.293L.002
- Program Title
- THE VLTI/GRAVITY+ AND MATISSE EXOPLANET EXTRAVAGANZA
- Program Type
- GTO
- PI / COI
- KREIDBERG / BRANDNER / LE BOUQUIN / TREVASCUS / SAUTER / LACOUR / MOLLIERE / SAMLAND / HOULLÉ / MILLOUR / BAILER-JONES / ROUSSELET-PERRAUT / PERRIN / EISENHAUER / PAUMARD / STRAUBMEIER / GARCIA / HOENIG / LUTZ / SPEZZANO / BERIO / SCIGLIUTO / LOPEZ / DEFR
Target
- ID
- 45803
- Name
- 51_Eri
- 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 | 50.0460 | 50.3090 | 18.9000 | 19.8000 |
| U1-U3 | 89.8910 | 90.5490 | 26.0000 | 26.9000 |
| U1-U4 | 115.0310 | 116.5710 | 57.9220 | 58.4690 |
| U2-U3 | 40.7080 | 41.1010 | 34.8000 | 35.6000 |
| U2-U4 | 82.4390 | 83.4430 | 80.4140 | 80.6040 |
| U3-U4 | 61.3280 | 61.6460 | 108.7500 | 108.7240 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 116.293L.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60991.19101342 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402894 |
| DEC | -2.47335 |
| 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 | 418.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 50.046 |
| HIERARCH ESO ISS PBL12 END | 50.309 |
| HIERARCH ESO ISS PBLA12 START | 18.9 |
| HIERARCH ESO ISS PBLA12 END | 19.8 |
| HIERARCH ESO ISS PBL13 START | 89.891 |
| HIERARCH ESO ISS PBL13 END | 90.549 |
| HIERARCH ESO ISS PBLA13 START | 26.0 |
| HIERARCH ESO ISS PBLA13 END | 26.9 |
| HIERARCH ESO ISS PBL14 START | 115.031 |
| HIERARCH ESO ISS PBL14 END | 116.571 |
| HIERARCH ESO ISS PBLA14 START | 57.922 |
| HIERARCH ESO ISS PBLA14 END | 58.469 |
| HIERARCH ESO ISS PBL23 START | 40.708 |
| HIERARCH ESO ISS PBL23 END | 41.101 |
| HIERARCH ESO ISS PBLA23 START | 34.8 |
| HIERARCH ESO ISS PBLA23 END | 35.6 |
| HIERARCH ESO ISS PBL24 START | 82.439 |
| HIERARCH ESO ISS PBL24 END | 83.443 |
| HIERARCH ESO ISS PBLA24 START | 80.414 |
| HIERARCH ESO ISS PBLA24 END | 80.604 |
| HIERARCH ESO ISS PBL34 START | 61.328 |
| HIERARCH ESO ISS PBL34 END | 61.646 |
| HIERARCH ESO ISS PBLA34 START | 108.75 |
| HIERARCH ESO ISS PBLA34 END | 108.724 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003888 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004216 |
| HIERARCH ESO ISS AMBI TEMP | 14.41 |
| HIERARCH ESO ISS AMBI FWHM START | 0.91 |
| HIERARCH ESO ISS AMBI FWHM END | 0.69 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |