Exposure
ID
PIONI.2021-11-05T07:44:56.714_1
Header ID
PIONI.2021-11-05T07:44:56.714
Date updated
2021-11-05 07:51:14 UTC+0000
Release date
2021-11-05 07:44:56 UTC+0000
UTC Start
2021-11-05 07:44:56.714
UTC End
2021-11-05 07:45:22.314
MJD Start
59523.3228786299
MJD End
59523.3231749262
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002722
Ambient temperature (°C)
10.33
Seeing (arcsec)
1.125
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 95.3530 95.1750 251.2000 251.2000
K0-D0 71.0650 70.9070 265.4000 265.4000
K0-J3 54.6360 54.6350 358.0160 358.1070
B2-D0 31.6830 31.6650 37.8000 37.8000
B2-J3 122.8580 122.7480 45.9980 46.0030
D0-J3 91.6080 91.5160 48.8200 48.8240
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 59523.3228786299
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 95.353
HIERARCH ESO ISS PBL12 END 95.175
HIERARCH ESO ISS PBLA12 START 251.2
HIERARCH ESO ISS PBLA12 END 251.2
HIERARCH ESO ISS PBL13 START 71.065
HIERARCH ESO ISS PBL13 END 70.907
HIERARCH ESO ISS PBLA13 START 265.4
HIERARCH ESO ISS PBLA13 END 265.4
HIERARCH ESO ISS PBL14 START 54.636
HIERARCH ESO ISS PBL14 END 54.635
HIERARCH ESO ISS PBLA14 START 358.016
HIERARCH ESO ISS PBLA14 END 358.107
HIERARCH ESO ISS PBL23 START 31.683
HIERARCH ESO ISS PBL23 END 31.665
HIERARCH ESO ISS PBLA23 START 37.8
HIERARCH ESO ISS PBLA23 END 37.8
HIERARCH ESO ISS PBL24 START 122.858
HIERARCH ESO ISS PBL24 END 122.748
HIERARCH ESO ISS PBLA24 START 45.998
HIERARCH ESO ISS PBLA24 END 46.003
HIERARCH ESO ISS PBL34 START 91.608
HIERARCH ESO ISS PBL34 END 91.516
HIERARCH ESO ISS PBLA34 START 48.82
HIERARCH ESO ISS PBLA34 END 48.824
HIERARCH ESO ISS AMBI TAU0 START 0.002861
HIERARCH ESO ISS AMBI TAU0 END 0.002583
HIERARCH ESO ISS AMBI TEMP 10.33
HIERARCH ESO ISS AMBI FWHM START 1.23
HIERARCH ESO ISS AMBI FWHM END 1.02