Exposure
ID
PIONI.2021-11-05T07:43:40.424_1
Header ID
PIONI.2021-11-05T07:43:40.424
Date updated
2021-11-05 07:51:14 UTC+0000
Release date
2021-11-05 07:43:40 UTC+0000
UTC Start
2021-11-05 07:43:40.424
UTC End
2021-11-05 07:44:06.024
MJD Start
59523.3219956472
MJD End
59523.3222919435
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002861
Ambient temperature (°C)
10.36
Seeing (arcsec)
1.23
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 95.7270 95.5500 251.2000 251.2000
K0-D0 71.3970 71.2400 265.3000 265.3000
K0-J3 54.6390 54.6370 357.8230 357.9140
B2-D0 31.7220 31.7040 37.8000 37.8000
B2-J3 123.0880 122.9790 45.9890 45.9930
D0-J3 91.8010 91.7100 48.8130 48.8160
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 59523.3219956472
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 95.727
HIERARCH ESO ISS PBL12 END 95.55
HIERARCH ESO ISS PBLA12 START 251.2
HIERARCH ESO ISS PBLA12 END 251.2
HIERARCH ESO ISS PBL13 START 71.397
HIERARCH ESO ISS PBL13 END 71.24
HIERARCH ESO ISS PBLA13 START 265.3
HIERARCH ESO ISS PBLA13 END 265.3
HIERARCH ESO ISS PBL14 START 54.639
HIERARCH ESO ISS PBL14 END 54.637
HIERARCH ESO ISS PBLA14 START 357.823
HIERARCH ESO ISS PBLA14 END 357.914
HIERARCH ESO ISS PBL23 START 31.722
HIERARCH ESO ISS PBL23 END 31.704
HIERARCH ESO ISS PBLA23 START 37.8
HIERARCH ESO ISS PBLA23 END 37.8
HIERARCH ESO ISS PBL24 START 123.088
HIERARCH ESO ISS PBL24 END 122.979
HIERARCH ESO ISS PBLA24 START 45.989
HIERARCH ESO ISS PBLA24 END 45.993
HIERARCH ESO ISS PBL34 START 91.801
HIERARCH ESO ISS PBL34 END 91.71
HIERARCH ESO ISS PBLA34 START 48.813
HIERARCH ESO ISS PBLA34 END 48.816
HIERARCH ESO ISS AMBI TAU0 START 0.002861
HIERARCH ESO ISS AMBI TAU0 END 0.002861
HIERARCH ESO ISS AMBI TEMP 10.36
HIERARCH ESO ISS AMBI FWHM START 1.23
HIERARCH ESO ISS AMBI FWHM END 1.23