Exposure
ID
PIONI.2021-11-06T04:52:31.436_1
Header ID
PIONI.2021-11-06T04:52:31.436
Date updated
2021-11-06 05:00:45 UTC+0000
Release date
2022-11-06 05:00:45 UTC+0000
UTC Start
2021-11-06 04:52:31.436
UTC End
2021-11-06 04:52:57.036
MJD Start
59524.203141619
MJD End
59524.2034379153
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003883
Ambient temperature (°C)
10.96
Seeing (arcsec)
0.63
Observation
ID
48772
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
36529
Name
eps Eri
RA
53.227885
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 68.1230 68.1370 270.7000 270.7000
K0-D0 94.6070 94.6450 250.6000 250.6000
K0-J3 55.5070 55.4940 330.2650 330.3200
G2-D0 38.5500 38.5640 213.2000 213.3000
G2-J3 62.3830 62.4100 40.5880 40.6470
D0-J3 100.7360 100.7770 37.7730 37.8340
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 59524.203141619
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227885
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 K0
HIERARCH ESO ISS CONF STATION2 G2
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 68.123
HIERARCH ESO ISS PBL12 END 68.137
HIERARCH ESO ISS PBLA12 START 270.7
HIERARCH ESO ISS PBLA12 END 270.7
HIERARCH ESO ISS PBL13 START 94.607
HIERARCH ESO ISS PBL13 END 94.645
HIERARCH ESO ISS PBLA13 START 250.6
HIERARCH ESO ISS PBLA13 END 250.6
HIERARCH ESO ISS PBL14 START 55.507
HIERARCH ESO ISS PBL14 END 55.494
HIERARCH ESO ISS PBLA14 START 330.265
HIERARCH ESO ISS PBLA14 END 330.32
HIERARCH ESO ISS PBL23 START 38.55
HIERARCH ESO ISS PBL23 END 38.564
HIERARCH ESO ISS PBLA23 START 213.2
HIERARCH ESO ISS PBLA23 END 213.3
HIERARCH ESO ISS PBL24 START 62.383
HIERARCH ESO ISS PBL24 END 62.41
HIERARCH ESO ISS PBLA24 START 40.588
HIERARCH ESO ISS PBLA24 END 40.647
HIERARCH ESO ISS PBL34 START 100.736
HIERARCH ESO ISS PBL34 END 100.777
HIERARCH ESO ISS PBLA34 START 37.773
HIERARCH ESO ISS PBLA34 END 37.834
HIERARCH ESO ISS AMBI TAU0 START 0.003883
HIERARCH ESO ISS AMBI TAU0 END 0.003883
HIERARCH ESO ISS AMBI TEMP 10.96
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.63