Exposure
- ID
- GRAVI.2025-11-12T04:15:09.510_2
- Header ID
- GRAVI.2025-11-12T04:15:09.510
- Date updated
- 2025-11-12 04:26:17 UTC+0000
- Release date
- 2026-11-12 04:26:17 UTC+0000
- UTC Start
- 2025-11-12 04:15:09.510
- UTC End
- 2025-11-12 04:16:29.510
- MJD Start
- 60991.1771934
- MJD End
- 60991.17811932592
- Exposure time (s)
- 80.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003477
- Ambient temperature (°C)
- 14.73
- Seeing (arcsec)
- 0.7849999999999999
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 | 49.3390 | 49.3950 | 16.1000 | 16.3000 |
| U1-U3 | 88.0510 | 88.2010 | 23.2000 | 23.4000 |
| U1-U4 | 110.2680 | 110.6850 | 56.1380 | 56.3010 |
| U2-U3 | 39.5690 | 39.6640 | 32.1000 | 32.3000 |
| U2-U4 | 79.1650 | 79.4610 | 79.7970 | 79.8530 |
| U3-U4 | 60.1400 | 60.2550 | 108.9210 | 108.9010 |
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 | 60991.1771934 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402894 |
| DEC | -2.47333 |
| 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 | 103.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 8 |
| HIERARCH ESO ISS PBL12 START | 49.339 |
| HIERARCH ESO ISS PBL12 END | 49.395 |
| HIERARCH ESO ISS PBLA12 START | 16.1 |
| HIERARCH ESO ISS PBLA12 END | 16.3 |
| HIERARCH ESO ISS PBL13 START | 88.051 |
| HIERARCH ESO ISS PBL13 END | 88.201 |
| HIERARCH ESO ISS PBLA13 START | 23.2 |
| HIERARCH ESO ISS PBLA13 END | 23.4 |
| HIERARCH ESO ISS PBL14 START | 110.268 |
| HIERARCH ESO ISS PBL14 END | 110.685 |
| HIERARCH ESO ISS PBLA14 START | 56.138 |
| HIERARCH ESO ISS PBLA14 END | 56.301 |
| HIERARCH ESO ISS PBL23 START | 39.569 |
| HIERARCH ESO ISS PBL23 END | 39.664 |
| HIERARCH ESO ISS PBLA23 START | 32.1 |
| HIERARCH ESO ISS PBLA23 END | 32.3 |
| HIERARCH ESO ISS PBL24 START | 79.165 |
| HIERARCH ESO ISS PBL24 END | 79.461 |
| HIERARCH ESO ISS PBLA24 START | 79.797 |
| HIERARCH ESO ISS PBLA24 END | 79.853 |
| HIERARCH ESO ISS PBL34 START | 60.14 |
| HIERARCH ESO ISS PBL34 END | 60.255 |
| HIERARCH ESO ISS PBLA34 START | 108.921 |
| HIERARCH ESO ISS PBLA34 END | 108.901 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004044 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00291 |
| HIERARCH ESO ISS AMBI TEMP | 14.73 |
| HIERARCH ESO ISS AMBI FWHM START | 0.75 |
| HIERARCH ESO ISS AMBI FWHM END | 0.82 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |