Exposure
- ID
- GRAVI.2025-11-12T04:20:24.522_2
- Header ID
- GRAVI.2025-11-12T04:20:24.522
- Date updated
- 2025-11-12 04:35:38 UTC+0000
- Release date
- 2026-11-12 04:35:38 UTC+0000
- UTC Start
- 2025-11-12 04:20:24.522
- UTC End
- 2025-11-12 04:27:04.522
- MJD Start
- 60991.18083938
- MJD End
- 60991.18546900963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0035115
- Ambient temperature (°C)
- 14.63
- Seeing (arcsec)
- 0.78
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 | 49.5180 | 49.7640 | 16.8000 | 17.8000 |
| U1-U3 | 88.5290 | 89.1710 | 24.0000 | 24.9000 |
| U1-U4 | 111.5750 | 113.2510 | 56.6430 | 57.2730 |
| U2-U3 | 39.8710 | 40.2700 | 32.8000 | 33.8000 |
| U2-U4 | 80.0870 | 81.2440 | 79.9710 | 80.1890 |
| U3-U4 | 60.4940 | 60.9180 | 108.8620 | 108.7990 |
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 | 60991.18083938 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402898 |
| DEC | -2.47333 |
| 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 | 49.518 |
| HIERARCH ESO ISS PBL12 END | 49.764 |
| HIERARCH ESO ISS PBLA12 START | 16.8 |
| HIERARCH ESO ISS PBLA12 END | 17.8 |
| HIERARCH ESO ISS PBL13 START | 88.529 |
| HIERARCH ESO ISS PBL13 END | 89.171 |
| HIERARCH ESO ISS PBLA13 START | 24.0 |
| HIERARCH ESO ISS PBLA13 END | 24.9 |
| HIERARCH ESO ISS PBL14 START | 111.575 |
| HIERARCH ESO ISS PBL14 END | 113.251 |
| HIERARCH ESO ISS PBLA14 START | 56.643 |
| HIERARCH ESO ISS PBLA14 END | 57.273 |
| HIERARCH ESO ISS PBL23 START | 39.871 |
| HIERARCH ESO ISS PBL23 END | 40.27 |
| HIERARCH ESO ISS PBLA23 START | 32.8 |
| HIERARCH ESO ISS PBLA23 END | 33.8 |
| HIERARCH ESO ISS PBL24 START | 80.087 |
| HIERARCH ESO ISS PBL24 END | 81.244 |
| HIERARCH ESO ISS PBLA24 START | 79.971 |
| HIERARCH ESO ISS PBLA24 END | 80.189 |
| HIERARCH ESO ISS PBL34 START | 60.494 |
| HIERARCH ESO ISS PBL34 END | 60.918 |
| HIERARCH ESO ISS PBLA34 START | 108.862 |
| HIERARCH ESO ISS PBLA34 END | 108.799 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00399 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003033 |
| HIERARCH ESO ISS AMBI TEMP | 14.63 |
| HIERARCH ESO ISS AMBI FWHM START | 0.8 |
| HIERARCH ESO ISS AMBI FWHM END | 0.76 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |