Exposure
- ID
- GRAVI.2025-11-12T05:04:57.636_2
- Header ID
- GRAVI.2025-11-12T05:04:57.636
- Date updated
- 2025-11-12 05:20:46 UTC+0000
- Release date
- 2026-11-12 05:20:46 UTC+0000
- UTC Start
- 2025-11-12 05:04:57.636
- UTC End
- 2025-11-12 05:11:37.636
- MJD Start
- 60991.21177819
- MJD End
- 60991.21640781963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003301
- Ambient temperature (°C)
- 14.07
- Seeing (arcsec)
- 0.75
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 | 51.2130 | 51.4950 | 22.7000 | 23.5000 |
| U1-U3 | 92.7190 | 93.3720 | 29.7000 | 30.4000 |
| U1-U4 | 121.1240 | 122.3450 | 60.0190 | 60.4210 |
| U2-U3 | 42.3510 | 42.7140 | 38.1000 | 38.8000 |
| U2-U4 | 86.2090 | 86.8860 | 81.1470 | 81.2900 |
| U3-U4 | 62.3270 | 62.4240 | 108.7530 | 108.7960 |
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 | 60991.21177819 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402898 |
| DEC | -2.47338 |
| 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 | 51.213 |
| HIERARCH ESO ISS PBL12 END | 51.495 |
| HIERARCH ESO ISS PBLA12 START | 22.7 |
| HIERARCH ESO ISS PBLA12 END | 23.5 |
| HIERARCH ESO ISS PBL13 START | 92.719 |
| HIERARCH ESO ISS PBL13 END | 93.372 |
| HIERARCH ESO ISS PBLA13 START | 29.7 |
| HIERARCH ESO ISS PBLA13 END | 30.4 |
| HIERARCH ESO ISS PBL14 START | 121.124 |
| HIERARCH ESO ISS PBL14 END | 122.345 |
| HIERARCH ESO ISS PBLA14 START | 60.019 |
| HIERARCH ESO ISS PBLA14 END | 60.421 |
| HIERARCH ESO ISS PBL23 START | 42.351 |
| HIERARCH ESO ISS PBL23 END | 42.714 |
| HIERARCH ESO ISS PBLA23 START | 38.1 |
| HIERARCH ESO ISS PBLA23 END | 38.8 |
| HIERARCH ESO ISS PBL24 START | 86.209 |
| HIERARCH ESO ISS PBL24 END | 86.886 |
| HIERARCH ESO ISS PBLA24 START | 81.147 |
| HIERARCH ESO ISS PBLA24 END | 81.29 |
| HIERARCH ESO ISS PBL34 START | 62.327 |
| HIERARCH ESO ISS PBL34 END | 62.424 |
| HIERARCH ESO ISS PBLA34 START | 108.753 |
| HIERARCH ESO ISS PBLA34 END | 108.796 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003474 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003128 |
| HIERARCH ESO ISS AMBI TEMP | 14.07 |
| HIERARCH ESO ISS AMBI FWHM START | 0.79 |
| HIERARCH ESO ISS AMBI FWHM END | 0.71 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |