Exposure
ID
PIONI.2021-11-02T05:24:13.436_1
Header ID
PIONI.2021-11-02T05:24:13.436
Date updated
2021-11-02 05:32:08 UTC+0000
Release date
2021-11-02 05:24:13 UTC+0000
UTC Start
2021-11-02 05:24:13.436
UTC End
2021-11-02 05:24:39.036
MJD Start
59520.2251555128
MJD End
59520.2254518091
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003147
Ambient temperature (°C)
11.32
Seeing (arcsec)
0.795
Observation
ID
48708
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
36479
Name
bet Eri
RA
76.960917
DEC
-5.08681
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.2940 25.2950 136.3000 136.3000
A0-D0 27.8560 27.8940 67.0000 67.0000
A0-C1 21.9280 21.9410 113.0010 112.9990
B2-D0 30.3020 30.3120 15.6000 15.7000
B2-C1 10.0950 10.0990 15.5860 15.6720
D0-C1 20.2070 20.2140 195.6540 195.7400
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 59520.2251555128
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME bet Eri
RA 76.960917
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 25.294
HIERARCH ESO ISS PBL12 END 25.295
HIERARCH ESO ISS PBLA12 START 136.3
HIERARCH ESO ISS PBLA12 END 136.3
HIERARCH ESO ISS PBL13 START 27.856
HIERARCH ESO ISS PBL13 END 27.894
HIERARCH ESO ISS PBLA13 START 67.0
HIERARCH ESO ISS PBLA13 END 67.0
HIERARCH ESO ISS PBL14 START 21.928
HIERARCH ESO ISS PBL14 END 21.941
HIERARCH ESO ISS PBLA14 START 113.001
HIERARCH ESO ISS PBLA14 END 112.999
HIERARCH ESO ISS PBL23 START 30.302
HIERARCH ESO ISS PBL23 END 30.312
HIERARCH ESO ISS PBLA23 START 15.6
HIERARCH ESO ISS PBLA23 END 15.7
HIERARCH ESO ISS PBL24 START 10.095
HIERARCH ESO ISS PBL24 END 10.099
HIERARCH ESO ISS PBLA24 START 15.586
HIERARCH ESO ISS PBLA24 END 15.672
HIERARCH ESO ISS PBL34 START 20.207
HIERARCH ESO ISS PBL34 END 20.214
HIERARCH ESO ISS PBLA34 START 195.654
HIERARCH ESO ISS PBLA34 END 195.74
HIERARCH ESO ISS AMBI TAU0 START 0.003009
HIERARCH ESO ISS AMBI TAU0 END 0.003285
HIERARCH ESO ISS AMBI TEMP 11.32
HIERARCH ESO ISS AMBI FWHM START 0.8
HIERARCH ESO ISS AMBI FWHM END 0.79