Exposure
- ID
- GRAVI.2025-11-12T05:12:15.654_2
- Header ID
- GRAVI.2025-11-12T05:12:15.654
- Date updated
- 2025-11-12 05:30:56 UTC+0000
- Release date
- 2026-11-12 05:30:56 UTC+0000
- UTC Start
- 2025-11-12 05:12:15.654
- UTC End
- 2025-11-12 05:18:55.654
- MJD Start
- 60991.21684785
- MJD End
- 60991.22147747963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0037105000000000003
- Ambient temperature (°C)
- 14.07
- Seeing (arcsec)
- 0.69
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 | 51.5100 | 51.7950 | 23.5000 | 24.3000 |
| U1-U3 | 93.4060 | 94.0510 | 30.5000 | 31.2000 |
| U1-U4 | 122.4070 | 123.5410 | 60.4420 | 60.8130 |
| U2-U3 | 42.7330 | 43.0850 | 38.9000 | 39.5000 |
| U2-U4 | 86.9190 | 87.5130 | 81.2970 | 81.4310 |
| U3-U4 | 62.4270 | 62.4690 | 108.7990 | 108.8600 |
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 | 60991.21684785 |
| 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 | 51.51 |
| HIERARCH ESO ISS PBL12 END | 51.795 |
| HIERARCH ESO ISS PBLA12 START | 23.5 |
| HIERARCH ESO ISS PBLA12 END | 24.3 |
| HIERARCH ESO ISS PBL13 START | 93.406 |
| HIERARCH ESO ISS PBL13 END | 94.051 |
| HIERARCH ESO ISS PBLA13 START | 30.5 |
| HIERARCH ESO ISS PBLA13 END | 31.2 |
| HIERARCH ESO ISS PBL14 START | 122.407 |
| HIERARCH ESO ISS PBL14 END | 123.541 |
| HIERARCH ESO ISS PBLA14 START | 60.442 |
| HIERARCH ESO ISS PBLA14 END | 60.813 |
| HIERARCH ESO ISS PBL23 START | 42.733 |
| HIERARCH ESO ISS PBL23 END | 43.085 |
| HIERARCH ESO ISS PBLA23 START | 38.9 |
| HIERARCH ESO ISS PBLA23 END | 39.5 |
| HIERARCH ESO ISS PBL24 START | 86.919 |
| HIERARCH ESO ISS PBL24 END | 87.513 |
| HIERARCH ESO ISS PBLA24 START | 81.297 |
| HIERARCH ESO ISS PBLA24 END | 81.431 |
| HIERARCH ESO ISS PBL34 START | 62.427 |
| HIERARCH ESO ISS PBL34 END | 62.469 |
| HIERARCH ESO ISS PBLA34 START | 108.799 |
| HIERARCH ESO ISS PBLA34 END | 108.86 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003128 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004293 |
| HIERARCH ESO ISS AMBI TEMP | 14.07 |
| HIERARCH ESO ISS AMBI FWHM START | 0.71 |
| HIERARCH ESO ISS AMBI FWHM END | 0.67 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |