Exposure
- ID
- GRAVI.2025-11-12T04:57:36.617_2
- Header ID
- GRAVI.2025-11-12T04:57:36.617
- Date updated
- 2025-11-12 05:15:58 UTC+0000
- Release date
- 2026-11-12 05:15:58 UTC+0000
- UTC Start
- 2025-11-12 04:57:36.617
- UTC End
- 2025-11-12 05:04:16.617
- MJD Start
- 60991.20667381
- MJD End
- 60991.211303439624
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0036090000000000002
- Ambient temperature (°C)
- 14.12
- Seeing (arcsec)
- 0.79
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 | 50.9180 | 51.1980 | 21.8000 | 22.6000 |
| U1-U3 | 92.0260 | 92.6840 | 28.8000 | 29.6000 |
| U1-U4 | 119.7550 | 121.0580 | 59.5610 | 59.9970 |
| U2-U3 | 41.9600 | 42.3320 | 37.4000 | 38.1000 |
| U2-U4 | 85.4130 | 86.1710 | 80.9860 | 81.1390 |
| U3-U4 | 62.1700 | 62.3210 | 108.7240 | 108.7510 |
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 | 60991.20667381 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402895 |
| DEC | -2.47337 |
| 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 | 50.918 |
| HIERARCH ESO ISS PBL12 END | 51.198 |
| HIERARCH ESO ISS PBLA12 START | 21.8 |
| HIERARCH ESO ISS PBLA12 END | 22.6 |
| HIERARCH ESO ISS PBL13 START | 92.026 |
| HIERARCH ESO ISS PBL13 END | 92.684 |
| HIERARCH ESO ISS PBLA13 START | 28.8 |
| HIERARCH ESO ISS PBLA13 END | 29.6 |
| HIERARCH ESO ISS PBL14 START | 119.755 |
| HIERARCH ESO ISS PBL14 END | 121.058 |
| HIERARCH ESO ISS PBLA14 START | 59.561 |
| HIERARCH ESO ISS PBLA14 END | 59.997 |
| HIERARCH ESO ISS PBL23 START | 41.96 |
| HIERARCH ESO ISS PBL23 END | 42.332 |
| HIERARCH ESO ISS PBLA23 START | 37.4 |
| HIERARCH ESO ISS PBLA23 END | 38.1 |
| HIERARCH ESO ISS PBL24 START | 85.413 |
| HIERARCH ESO ISS PBL24 END | 86.171 |
| HIERARCH ESO ISS PBLA24 START | 80.986 |
| HIERARCH ESO ISS PBLA24 END | 81.139 |
| HIERARCH ESO ISS PBL34 START | 62.17 |
| HIERARCH ESO ISS PBL34 END | 62.321 |
| HIERARCH ESO ISS PBLA34 START | 108.724 |
| HIERARCH ESO ISS PBLA34 END | 108.751 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003836 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003382 |
| HIERARCH ESO ISS AMBI TEMP | 14.12 |
| HIERARCH ESO ISS AMBI FWHM START | 0.82 |
| 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 |