Exposure
ID
PIONI.2021-11-05T08:16:14.448_1
Header ID
PIONI.2021-11-05T08:16:14.448
Date updated
2021-11-05 08:20:40 UTC+0000
Release date
2021-11-05 08:16:14 UTC+0000
UTC Start
2021-11-05 08:16:14.448
UTC End
2021-11-05 08:16:40.048
MJD Start
59523.3446116722
MJD End
59523.3449079685
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003054
Ambient temperature (°C)
9.92
Seeing (arcsec)
1.01
Observation
ID
48757
Category
calibrator
Program ID
108.227F.001
Program Title
THE FIRST INTERFEROMETRIC IMAGE OF A SUNLIKE STAR: EPS ERIDANI
Program Type
Normal
PI / COI
ROETTENBACHER/ KORHONEN/ FISCHER/ DAVIES
Target
ID
36517
Name
bet Eri
RA
76.961475
DEC
-5.08681
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-B2 120.8450 120.8000 243.1000 243.1000
K0-D0 93.1510 93.0930 253.5000 253.5000
K0-J3 50.8720 50.8510 341.1620 341.2450
B2-D0 33.6980 33.7040 33.3000 33.3000
B2-J3 137.5120 137.5210 41.6440 41.6620
D0-J3 104.2900 104.2930 44.3470 44.3620
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.227F.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 59523.3446116722
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME bet Eri
RA 76.961475
DEC -5.08681
HIERARCH ESO INS OPTI2 NAME GRISM
HIERARCH ESO INS OPTI2 ID GRISM
HIERARCH ESO INS FILT1 NAME H
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 K0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 120.845
HIERARCH ESO ISS PBL12 END 120.8
HIERARCH ESO ISS PBLA12 START 243.1
HIERARCH ESO ISS PBLA12 END 243.1
HIERARCH ESO ISS PBL13 START 93.151
HIERARCH ESO ISS PBL13 END 93.093
HIERARCH ESO ISS PBLA13 START 253.5
HIERARCH ESO ISS PBLA13 END 253.5
HIERARCH ESO ISS PBL14 START 50.872
HIERARCH ESO ISS PBL14 END 50.851
HIERARCH ESO ISS PBLA14 START 341.162
HIERARCH ESO ISS PBLA14 END 341.245
HIERARCH ESO ISS PBL23 START 33.698
HIERARCH ESO ISS PBL23 END 33.704
HIERARCH ESO ISS PBLA23 START 33.3
HIERARCH ESO ISS PBLA23 END 33.3
HIERARCH ESO ISS PBL24 START 137.512
HIERARCH ESO ISS PBL24 END 137.521
HIERARCH ESO ISS PBLA24 START 41.644
HIERARCH ESO ISS PBLA24 END 41.662
HIERARCH ESO ISS PBL34 START 104.29
HIERARCH ESO ISS PBL34 END 104.293
HIERARCH ESO ISS PBLA34 START 44.347
HIERARCH ESO ISS PBLA34 END 44.362
HIERARCH ESO ISS AMBI TAU0 START 0.003054
HIERARCH ESO ISS AMBI TAU0 END 0.003054
HIERARCH ESO ISS AMBI TEMP 9.92
HIERARCH ESO ISS AMBI FWHM START 1.01
HIERARCH ESO ISS AMBI FWHM END 1.01