Exposure
ID
PIONI.2021-11-12T05:18:14.968_1
Header ID
PIONI.2021-11-12T05:18:14.968
Date updated
2021-11-12 05:26:33 UTC+0000
Release date
2021-11-12 05:18:14 UTC+0000
UTC Start
2021-11-12 05:18:14.967
UTC End
2021-11-12 05:18:40.567
MJD Start
59530.2210065657
MJD End
59530.221302862
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003842
Ambient temperature (°C)
13.59
Seeing (arcsec)
0.665
Observation
ID
48832
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
A0 G1 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 87.0010 86.9500 123.6000 123.7000
A0-J2 123.8350 123.7450 99.4000 99.5000
A0-J3 130.4410 130.3970 51.7330 51.7710
G1-J2 56.9750 56.9490 60.7000 60.8000
G1-J3 132.3900 132.3910 13.0790 13.1350
J2-J3 103.0170 103.0110 348.9480 349.0210
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 59530.2210065657
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 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
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 87.001
HIERARCH ESO ISS PBL12 END 86.95
HIERARCH ESO ISS PBLA12 START 123.6
HIERARCH ESO ISS PBLA12 END 123.7
HIERARCH ESO ISS PBL13 START 123.835
HIERARCH ESO ISS PBL13 END 123.745
HIERARCH ESO ISS PBLA13 START 99.4
HIERARCH ESO ISS PBLA13 END 99.5
HIERARCH ESO ISS PBL14 START 130.441
HIERARCH ESO ISS PBL14 END 130.397
HIERARCH ESO ISS PBLA14 START 51.733
HIERARCH ESO ISS PBLA14 END 51.771
HIERARCH ESO ISS PBL23 START 56.975
HIERARCH ESO ISS PBL23 END 56.949
HIERARCH ESO ISS PBLA23 START 60.7
HIERARCH ESO ISS PBLA23 END 60.8
HIERARCH ESO ISS PBL24 START 132.39
HIERARCH ESO ISS PBL24 END 132.391
HIERARCH ESO ISS PBLA24 START 13.079
HIERARCH ESO ISS PBLA24 END 13.135
HIERARCH ESO ISS PBL34 START 103.017
HIERARCH ESO ISS PBL34 END 103.011
HIERARCH ESO ISS PBLA34 START 348.948
HIERARCH ESO ISS PBLA34 END 349.021
HIERARCH ESO ISS AMBI TAU0 START 0.003842
HIERARCH ESO ISS AMBI TAU0 END 0.003842
HIERARCH ESO ISS AMBI TEMP 13.59
HIERARCH ESO ISS AMBI FWHM START 0.66
HIERARCH ESO ISS AMBI FWHM END 0.67