Exposure
- ID
- GRAVI.2025-11-12T05:51:48.755_2
- Header ID
- GRAVI.2025-11-12T05:51:48.755
- Date updated
- 2025-11-12 06:12:06 UTC+0000
- Release date
- 2026-11-12 06:12:06 UTC+0000
- UTC Start
- 2025-11-12 05:51:48.755
- UTC End
- 2025-11-12 05:58:28.755
- MJD Start
- 60991.24431429
- MJD End
- 60991.24894391963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005173
- Ambient temperature (°C)
- 14.53
- Seeing (arcsec)
- 0.46499999999999997
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 | 53.1110 | 53.3810 | 27.6000 | 28.2000 |
| U1-U3 | 96.8950 | 97.4510 | 34.2000 | 34.8000 |
| U1-U4 | 127.7100 | 128.3450 | 62.1920 | 62.4150 |
| U2-U3 | 44.5590 | 44.8310 | 42.1000 | 42.6000 |
| U2-U4 | 89.2310 | 89.3690 | 81.9390 | 82.0250 |
| U3-U4 | 61.9780 | 61.7290 | 109.3610 | 109.5160 |
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 | 60991.24431429 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402896 |
| DEC | -2.47351 |
| 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 | 53.111 |
| HIERARCH ESO ISS PBL12 END | 53.381 |
| HIERARCH ESO ISS PBLA12 START | 27.6 |
| HIERARCH ESO ISS PBLA12 END | 28.2 |
| HIERARCH ESO ISS PBL13 START | 96.895 |
| HIERARCH ESO ISS PBL13 END | 97.451 |
| HIERARCH ESO ISS PBLA13 START | 34.2 |
| HIERARCH ESO ISS PBLA13 END | 34.8 |
| HIERARCH ESO ISS PBL14 START | 127.71 |
| HIERARCH ESO ISS PBL14 END | 128.345 |
| HIERARCH ESO ISS PBLA14 START | 62.192 |
| HIERARCH ESO ISS PBLA14 END | 62.415 |
| HIERARCH ESO ISS PBL23 START | 44.559 |
| HIERARCH ESO ISS PBL23 END | 44.831 |
| HIERARCH ESO ISS PBLA23 START | 42.1 |
| HIERARCH ESO ISS PBLA23 END | 42.6 |
| HIERARCH ESO ISS PBL24 START | 89.231 |
| HIERARCH ESO ISS PBL24 END | 89.369 |
| HIERARCH ESO ISS PBLA24 START | 81.939 |
| HIERARCH ESO ISS PBLA24 END | 82.025 |
| HIERARCH ESO ISS PBL34 START | 61.978 |
| HIERARCH ESO ISS PBL34 END | 61.729 |
| HIERARCH ESO ISS PBLA34 START | 109.361 |
| HIERARCH ESO ISS PBLA34 END | 109.516 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00535 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004996 |
| HIERARCH ESO ISS AMBI TEMP | 14.53 |
| HIERARCH ESO ISS AMBI FWHM START | 0.45 |
| HIERARCH ESO ISS AMBI FWHM END | 0.48 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |