Exposure
ID
PIONI.2021-11-04T05:01:00.797_1
Header ID
PIONI.2021-11-04T05:01:00.797
Date updated
2021-11-04 05:11:13 UTC+0000
Release date
2021-11-04 05:01:00 UTC+0000
UTC Start
2021-11-04 05:01:00.797
UTC End
2021-11-04 05:01:26.397
MJD Start
59522.2090370003
MJD End
59522.2093332966
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0085405
Ambient temperature (°C)
10.9
Seeing (arcsec)
0.32
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 122.2220 122.2100 241.7000 241.8000
K0-D0 95.7790 95.7650 253.0000 253.0000
K0-J3 56.2970 56.2920 335.1920 335.2580
B2-D0 33.9290 33.9300 28.2000 28.3000
B2-J3 137.6260 137.6250 37.6230 37.6760
D0-J3 104.3000 104.2990 40.6700 40.7230
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 59522.2090370003
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 122.222
HIERARCH ESO ISS PBL12 END 122.21
HIERARCH ESO ISS PBLA12 START 241.7
HIERARCH ESO ISS PBLA12 END 241.8
HIERARCH ESO ISS PBL13 START 95.779
HIERARCH ESO ISS PBL13 END 95.765
HIERARCH ESO ISS PBLA13 START 253.0
HIERARCH ESO ISS PBLA13 END 253.0
HIERARCH ESO ISS PBL14 START 56.297
HIERARCH ESO ISS PBL14 END 56.292
HIERARCH ESO ISS PBLA14 START 335.192
HIERARCH ESO ISS PBLA14 END 335.258
HIERARCH ESO ISS PBL23 START 33.929
HIERARCH ESO ISS PBL23 END 33.93
HIERARCH ESO ISS PBLA23 START 28.2
HIERARCH ESO ISS PBLA23 END 28.3
HIERARCH ESO ISS PBL24 START 137.626
HIERARCH ESO ISS PBL24 END 137.625
HIERARCH ESO ISS PBLA24 START 37.623
HIERARCH ESO ISS PBLA24 END 37.676
HIERARCH ESO ISS PBL34 START 104.3
HIERARCH ESO ISS PBL34 END 104.299
HIERARCH ESO ISS PBLA34 START 40.67
HIERARCH ESO ISS PBLA34 END 40.723
HIERARCH ESO ISS AMBI TAU0 START 0.00843
HIERARCH ESO ISS AMBI TAU0 END 0.008651
HIERARCH ESO ISS AMBI TEMP 10.9
HIERARCH ESO ISS AMBI FWHM START 0.31
HIERARCH ESO ISS AMBI FWHM END 0.33