Exposure
ID
PIONI.2021-11-10T05:01:29.336_1
Header ID
PIONI.2021-11-10T05:01:29.336
Date updated
2021-11-10 05:11:07 UTC+0000
Release date
2022-11-10 05:11:07 UTC+0000
UTC Start
2021-11-10 05:01:29.336
UTC End
2021-11-10 05:01:54.936
MJD Start
59528.2093673148
MJD End
59528.209663611095
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003091
Ambient temperature (°C)
9.67
Seeing (arcsec)
0.73
Observation
ID
48840
Category
science
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
36577
Name
eps Eri
RA
53.22732
DEC
-9.45816
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 89.7210 89.6930 115.4000 115.5000
A0-J2 129.1740 129.1630 92.9000 92.9000
A0-J3 130.5050 130.5480 47.3350 47.3770
G1-J2 57.6910 57.7080 56.3000 56.3000
G1-J3 127.8730 127.8840 6.7120 6.7760
J2-J3 100.5640 100.5420 340.8160 340.8780
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.227F.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 59528.2093673148
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.22732
DEC -9.45816
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 89.721
HIERARCH ESO ISS PBL12 END 89.693
HIERARCH ESO ISS PBLA12 START 115.4
HIERARCH ESO ISS PBLA12 END 115.5
HIERARCH ESO ISS PBL13 START 129.174
HIERARCH ESO ISS PBL13 END 129.163
HIERARCH ESO ISS PBLA13 START 92.9
HIERARCH ESO ISS PBLA13 END 92.9
HIERARCH ESO ISS PBL14 START 130.505
HIERARCH ESO ISS PBL14 END 130.548
HIERARCH ESO ISS PBLA14 START 47.335
HIERARCH ESO ISS PBLA14 END 47.377
HIERARCH ESO ISS PBL23 START 57.691
HIERARCH ESO ISS PBL23 END 57.708
HIERARCH ESO ISS PBLA23 START 56.3
HIERARCH ESO ISS PBLA23 END 56.3
HIERARCH ESO ISS PBL24 START 127.873
HIERARCH ESO ISS PBL24 END 127.884
HIERARCH ESO ISS PBLA24 START 6.712
HIERARCH ESO ISS PBLA24 END 6.776
HIERARCH ESO ISS PBL34 START 100.564
HIERARCH ESO ISS PBL34 END 100.542
HIERARCH ESO ISS PBLA34 START 340.816
HIERARCH ESO ISS PBLA34 END 340.878
HIERARCH ESO ISS AMBI TAU0 START 0.003091
HIERARCH ESO ISS AMBI TAU0 END 0.003091
HIERARCH ESO ISS AMBI TEMP 9.67
HIERARCH ESO ISS AMBI FWHM START 0.73
HIERARCH ESO ISS AMBI FWHM END 0.73