Exposure
ID
GRAVI.2025-12-05T02:23:24.490_1
Header ID
GRAVI.2025-12-05T02:23:24.490
Date updated
2025-12-05 02:30:43 UTC+0000
Release date
2026-12-05 02:30:43 UTC+0000
UTC Start
2025-12-05 02:23:24.490
UTC End
2025-12-05 02:24:48.490
MJD Start
61014.099589
MJD End
61014.10056122222
Exposure time (s)
84.0
Validation level
1
Tau 0: Coherence time (s)
0.00556
Ambient temperature (°C)
12.84
Seeing (arcsec)
0.615
Observation
ID
71978
Category
science
Program ID
116.29H7.001
Program Title
GPAO COMMISSIONING
Program Type
Normal
PI / COI
TEAM
Target
ID
53439
Name
51_Eri
RA
69.402568
DEC
-2.47415
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 48.6820 48.7320 12.9000 13.1000
U1-U3 86.2060 86.3520 19.9000 20.2000
U1-U4 104.6620 105.1440 53.8190 54.0290
U2-U3 38.3570 38.4560 28.8000 29.1000
U2-U4 75.0260 75.3930 78.9960 79.0690
U3-U4 58.4190 58.5790 109.2730 109.2370
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.29H7.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 61014.099589
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME 51 Eri
HIERARCH ESO INS SOBJ NAME 51_Eri
RA 69.402568
DEC -2.47415
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 109.0
HIERARCH ESO DET2 SEQ1 DIT 1.0
HIERARCH ESO DET2 NDIT 84
HIERARCH ESO ISS PBL12 START 48.682
HIERARCH ESO ISS PBL12 END 48.732
HIERARCH ESO ISS PBLA12 START 12.9
HIERARCH ESO ISS PBLA12 END 13.1
HIERARCH ESO ISS PBL13 START 86.206
HIERARCH ESO ISS PBL13 END 86.352
HIERARCH ESO ISS PBLA13 START 19.9
HIERARCH ESO ISS PBLA13 END 20.2
HIERARCH ESO ISS PBL14 START 104.662
HIERARCH ESO ISS PBL14 END 105.144
HIERARCH ESO ISS PBLA14 START 53.819
HIERARCH ESO ISS PBLA14 END 54.029
HIERARCH ESO ISS PBL23 START 38.357
HIERARCH ESO ISS PBL23 END 38.456
HIERARCH ESO ISS PBLA23 START 28.8
HIERARCH ESO ISS PBLA23 END 29.1
HIERARCH ESO ISS PBL24 START 75.026
HIERARCH ESO ISS PBL24 END 75.393
HIERARCH ESO ISS PBLA24 START 78.996
HIERARCH ESO ISS PBLA24 END 79.069
HIERARCH ESO ISS PBL34 START 58.419
HIERARCH ESO ISS PBL34 END 58.579
HIERARCH ESO ISS PBLA34 START 109.273
HIERARCH ESO ISS PBLA34 END 109.237
HIERARCH ESO ISS AMBI TAU0 START 0.005545
HIERARCH ESO ISS AMBI TAU0 END 0.005575
HIERARCH ESO ISS AMBI TEMP 12.84
HIERARCH ESO ISS AMBI FWHM START 0.62
HIERARCH ESO ISS AMBI FWHM END 0.61
HIERARCH ESO FT ROBJ NAME 51_Eri
HIERARCH ESO FT ROBJ ALPHA 043736.133
HIERARCH ESO FT ROBJ DELTA -022824.775