Exposure
ID
PIONI.2021-11-06T04:37:00.652_1
Header ID
PIONI.2021-11-06T04:37:00.652
Date updated
2021-11-06 04:46:04 UTC+0000
Release date
2022-11-06 04:46:04 UTC+0000
UTC Start
2021-11-06 04:37:00.652
UTC End
2021-11-06 04:37:26.252
MJD Start
59524.1923686555
MJD End
59524.1926649518
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0032085
Ambient temperature (°C)
11.06
Seeing (arcsec)
0.72
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 67.6000 67.6250 270.1000 270.1000
K0-D0 93.4010 93.4550 249.7000 249.7000
K0-J3 55.8440 55.8320 329.0450 329.0900
G2-D0 38.1430 38.1600 211.6000 211.7000
G2-J3 61.6210 61.6530 39.1150 39.1750
D0-J3 99.5640 99.6110 36.2530 36.3150
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 59524.1923686555
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 67.6
HIERARCH ESO ISS PBL12 END 67.625
HIERARCH ESO ISS PBLA12 START 270.1
HIERARCH ESO ISS PBLA12 END 270.1
HIERARCH ESO ISS PBL13 START 93.401
HIERARCH ESO ISS PBL13 END 93.455
HIERARCH ESO ISS PBLA13 START 249.7
HIERARCH ESO ISS PBLA13 END 249.7
HIERARCH ESO ISS PBL14 START 55.844
HIERARCH ESO ISS PBL14 END 55.832
HIERARCH ESO ISS PBLA14 START 329.045
HIERARCH ESO ISS PBLA14 END 329.09
HIERARCH ESO ISS PBL23 START 38.143
HIERARCH ESO ISS PBL23 END 38.16
HIERARCH ESO ISS PBLA23 START 211.6
HIERARCH ESO ISS PBLA23 END 211.7
HIERARCH ESO ISS PBL24 START 61.621
HIERARCH ESO ISS PBL24 END 61.653
HIERARCH ESO ISS PBLA24 START 39.115
HIERARCH ESO ISS PBLA24 END 39.175
HIERARCH ESO ISS PBL34 START 99.564
HIERARCH ESO ISS PBL34 END 99.611
HIERARCH ESO ISS PBLA34 START 36.253
HIERARCH ESO ISS PBLA34 END 36.315
HIERARCH ESO ISS AMBI TAU0 START 0.003009
HIERARCH ESO ISS AMBI TAU0 END 0.003408
HIERARCH ESO ISS AMBI TEMP 11.06
HIERARCH ESO ISS AMBI FWHM START 0.71
HIERARCH ESO ISS AMBI FWHM END 0.73