Exposure
ID
PIONI.2021-11-04T05:00:22.626_1
Header ID
PIONI.2021-11-04T05:00:22.626
Date updated
2021-11-04 05:05:45 UTC+0000
Release date
2021-11-04 05:00:22 UTC+0000
UTC Start
2021-11-04 05:00:22.626
UTC End
2021-11-04 05:00:48.226
MJD Start
59522.2085952098
MJD End
59522.2088915061
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.00843
Ambient temperature (°C)
10.9
Seeing (arcsec)
0.31
Observation
ID
48736
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
36500
Name
tau02 Eri
RA
42.758876
DEC
-21.0041
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 122.2340 122.2230 241.7000 241.7000
K0-D0 95.7940 95.7800 252.9000 253.0000
K0-J3 56.3030 56.2980 335.1220 335.1880
B2-D0 33.9280 33.9290 28.2000 28.2000
B2-J3 137.6260 137.6260 37.5660 37.6200
D0-J3 104.3010 104.3000 40.6140 40.6670
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 59522.2085952098
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME tau02 Eri
RA 42.758876
DEC -21.0041
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 122.234
HIERARCH ESO ISS PBL12 END 122.223
HIERARCH ESO ISS PBLA12 START 241.7
HIERARCH ESO ISS PBLA12 END 241.7
HIERARCH ESO ISS PBL13 START 95.794
HIERARCH ESO ISS PBL13 END 95.78
HIERARCH ESO ISS PBLA13 START 252.9
HIERARCH ESO ISS PBLA13 END 253.0
HIERARCH ESO ISS PBL14 START 56.303
HIERARCH ESO ISS PBL14 END 56.298
HIERARCH ESO ISS PBLA14 START 335.122
HIERARCH ESO ISS PBLA14 END 335.188
HIERARCH ESO ISS PBL23 START 33.928
HIERARCH ESO ISS PBL23 END 33.929
HIERARCH ESO ISS PBLA23 START 28.2
HIERARCH ESO ISS PBLA23 END 28.2
HIERARCH ESO ISS PBL24 START 137.626
HIERARCH ESO ISS PBL24 END 137.626
HIERARCH ESO ISS PBLA24 START 37.566
HIERARCH ESO ISS PBLA24 END 37.62
HIERARCH ESO ISS PBL34 START 104.301
HIERARCH ESO ISS PBL34 END 104.3
HIERARCH ESO ISS PBLA34 START 40.614
HIERARCH ESO ISS PBLA34 END 40.667
HIERARCH ESO ISS AMBI TAU0 START 0.00843
HIERARCH ESO ISS AMBI TAU0 END 0.00843
HIERARCH ESO ISS AMBI TEMP 10.9
HIERARCH ESO ISS AMBI FWHM START 0.31
HIERARCH ESO ISS AMBI FWHM END 0.31