Exposure
ID
PIONI.2021-11-13T07:12:49.750_1
Header ID
PIONI.2021-11-13T07:12:49.750
Date updated
2021-11-13 07:20:45 UTC+0000
Release date
2021-11-13 07:12:49 UTC+0000
UTC Start
2021-11-13 07:12:49.750
UTC End
2021-11-13 07:13:15.350
MJD Start
59531.3005758123
MJD End
59531.3008721086
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.007526
Ambient temperature (°C)
13.27
Seeing (arcsec)
0.42
Observation
ID
48834
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
36572
Name
bet Eri
RA
76.961474
DEC
-5.08681
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 84.9020 84.8310 117.4000 117.4000
A0-J2 125.3600 125.2800 93.9000 93.9000
A0-J3 132.1710 132.1870 50.1740 50.1920
G1-J2 58.2290 58.2290 58.5000 58.5000
G1-J3 126.3820 126.4030 11.9130 11.9710
J2-J3 96.1740 96.1500 345.8170 345.8880
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 59531.3005758123
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME bet Eri
RA 76.961474
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 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
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 84.902
HIERARCH ESO ISS PBL12 END 84.831
HIERARCH ESO ISS PBLA12 START 117.4
HIERARCH ESO ISS PBLA12 END 117.4
HIERARCH ESO ISS PBL13 START 125.36
HIERARCH ESO ISS PBL13 END 125.28
HIERARCH ESO ISS PBLA13 START 93.9
HIERARCH ESO ISS PBLA13 END 93.9
HIERARCH ESO ISS PBL14 START 132.171
HIERARCH ESO ISS PBL14 END 132.187
HIERARCH ESO ISS PBLA14 START 50.174
HIERARCH ESO ISS PBLA14 END 50.192
HIERARCH ESO ISS PBL23 START 58.229
HIERARCH ESO ISS PBL23 END 58.229
HIERARCH ESO ISS PBLA23 START 58.5
HIERARCH ESO ISS PBLA23 END 58.5
HIERARCH ESO ISS PBL24 START 126.382
HIERARCH ESO ISS PBL24 END 126.403
HIERARCH ESO ISS PBLA24 START 11.913
HIERARCH ESO ISS PBLA24 END 11.971
HIERARCH ESO ISS PBL34 START 96.174
HIERARCH ESO ISS PBL34 END 96.15
HIERARCH ESO ISS PBLA34 START 345.817
HIERARCH ESO ISS PBLA34 END 345.888
HIERARCH ESO ISS AMBI TAU0 START 0.007526
HIERARCH ESO ISS AMBI TAU0 END 0.007526
HIERARCH ESO ISS AMBI TEMP 13.27
HIERARCH ESO ISS AMBI FWHM START 0.42
HIERARCH ESO ISS AMBI FWHM END 0.42