Exposure
ID
PIONI.2021-11-05T07:43:02.345_1
Header ID
PIONI.2021-11-05T07:43:02.345
Date updated
2021-11-05 07:51:14 UTC+0000
Release date
2021-11-05 07:43:02 UTC+0000
UTC Start
2021-11-05 07:43:02.345
UTC End
2021-11-05 07:43:27.945
MJD Start
59523.3215549197
MJD End
59523.321851216
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0026785
Ambient temperature (°C)
10.36
Seeing (arcsec)
1.185
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 95.9140 95.7370 251.1000 251.2000
K0-D0 71.5620 71.4050 265.2000 265.3000
K0-J3 54.6400 54.6390 357.7270 357.8180
B2-D0 31.7410 31.7230 37.8000 37.8000
B2-J3 123.2020 123.0940 45.9830 45.9880
D0-J3 91.8980 91.8060 48.8090 48.8120
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 59523.3215549197
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 95.914
HIERARCH ESO ISS PBL12 END 95.737
HIERARCH ESO ISS PBLA12 START 251.1
HIERARCH ESO ISS PBLA12 END 251.2
HIERARCH ESO ISS PBL13 START 71.562
HIERARCH ESO ISS PBL13 END 71.405
HIERARCH ESO ISS PBLA13 START 265.2
HIERARCH ESO ISS PBLA13 END 265.3
HIERARCH ESO ISS PBL14 START 54.64
HIERARCH ESO ISS PBL14 END 54.639
HIERARCH ESO ISS PBLA14 START 357.727
HIERARCH ESO ISS PBLA14 END 357.818
HIERARCH ESO ISS PBL23 START 31.741
HIERARCH ESO ISS PBL23 END 31.723
HIERARCH ESO ISS PBLA23 START 37.8
HIERARCH ESO ISS PBLA23 END 37.8
HIERARCH ESO ISS PBL24 START 123.202
HIERARCH ESO ISS PBL24 END 123.094
HIERARCH ESO ISS PBLA24 START 45.983
HIERARCH ESO ISS PBLA24 END 45.988
HIERARCH ESO ISS PBL34 START 91.898
HIERARCH ESO ISS PBL34 END 91.806
HIERARCH ESO ISS PBLA34 START 48.809
HIERARCH ESO ISS PBLA34 END 48.812
HIERARCH ESO ISS AMBI TAU0 START 0.002496
HIERARCH ESO ISS AMBI TAU0 END 0.002861
HIERARCH ESO ISS AMBI TEMP 10.36
HIERARCH ESO ISS AMBI FWHM START 1.14
HIERARCH ESO ISS AMBI FWHM END 1.23