Exposure
ID
PIONI.2021-11-11T05:09:46.803_1
Header ID
PIONI.2021-11-11T05:09:46.803
Date updated
2021-11-11 05:15:59 UTC+0000
Release date
2022-11-11 05:15:58 UTC+0000
UTC Start
2021-11-11 05:09:46.804
UTC End
2021-11-11 05:10:12.404
MJD Start
59529.2151250411
MJD End
59529.2154213374
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002851
Ambient temperature (°C)
11.2
Seeing (arcsec)
0.98
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 89.0540 89.0160 116.1000 116.2000
A0-J2 128.7830 128.7540 93.4000 93.4000
A0-J3 131.2820 131.3150 48.1380 48.1760
G1-J2 57.9830 57.9940 57.0000 57.0000
G1-J3 128.1030 128.1150 8.0000 8.0630
J2-J3 100.1060 100.0840 342.0890 342.1540
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 59529.2151250411
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 89.054
HIERARCH ESO ISS PBL12 END 89.016
HIERARCH ESO ISS PBLA12 START 116.1
HIERARCH ESO ISS PBLA12 END 116.2
HIERARCH ESO ISS PBL13 START 128.783
HIERARCH ESO ISS PBL13 END 128.754
HIERARCH ESO ISS PBLA13 START 93.4
HIERARCH ESO ISS PBLA13 END 93.4
HIERARCH ESO ISS PBL14 START 131.282
HIERARCH ESO ISS PBL14 END 131.315
HIERARCH ESO ISS PBLA14 START 48.138
HIERARCH ESO ISS PBLA14 END 48.176
HIERARCH ESO ISS PBL23 START 57.983
HIERARCH ESO ISS PBL23 END 57.994
HIERARCH ESO ISS PBLA23 START 57.0
HIERARCH ESO ISS PBLA23 END 57.0
HIERARCH ESO ISS PBL24 START 128.103
HIERARCH ESO ISS PBL24 END 128.115
HIERARCH ESO ISS PBLA24 START 8.0
HIERARCH ESO ISS PBLA24 END 8.063
HIERARCH ESO ISS PBL34 START 100.106
HIERARCH ESO ISS PBL34 END 100.084
HIERARCH ESO ISS PBLA34 START 342.089
HIERARCH ESO ISS PBLA34 END 342.154
HIERARCH ESO ISS AMBI TAU0 START 0.002851
HIERARCH ESO ISS AMBI TAU0 END 0.002851
HIERARCH ESO ISS AMBI TEMP 11.2
HIERARCH ESO ISS AMBI FWHM START 0.98
HIERARCH ESO ISS AMBI FWHM END 0.98