Exposure
ID
PIONI.2021-11-12T07:14:17.652_1
Header ID
PIONI.2021-11-12T07:14:17.652
Date updated
2021-11-12 07:21:16 UTC+0000
Release date
2022-11-12 07:21:16 UTC+0000
UTC Start
2021-11-12 07:14:17.652
UTC End
2021-11-12 07:14:43.252
MJD Start
59530.301593198
MJD End
59530.3018894943
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002636
Ambient temperature (°C)
13.1
Seeing (arcsec)
0.565
Observation
ID
48855
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
36582
Name
eps Eri
RA
53.227319
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 72.0410 71.9340 129.3000 129.4000
A0-J2 104.1030 103.9130 100.2000 100.3000
A0-J3 126.6000 126.5230 51.7840 51.7820
G1-J2 53.9980 53.9500 59.9000 59.9000
G1-J3 131.4410 131.4550 19.4260 19.4680
J2-J3 96.8910 96.8880 358.2350 358.3160
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 59530.301593198
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227319
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 72.041
HIERARCH ESO ISS PBL12 END 71.934
HIERARCH ESO ISS PBLA12 START 129.3
HIERARCH ESO ISS PBLA12 END 129.4
HIERARCH ESO ISS PBL13 START 104.103
HIERARCH ESO ISS PBL13 END 103.913
HIERARCH ESO ISS PBLA13 START 100.2
HIERARCH ESO ISS PBLA13 END 100.3
HIERARCH ESO ISS PBL14 START 126.6
HIERARCH ESO ISS PBL14 END 126.523
HIERARCH ESO ISS PBLA14 START 51.784
HIERARCH ESO ISS PBLA14 END 51.782
HIERARCH ESO ISS PBL23 START 53.998
HIERARCH ESO ISS PBL23 END 53.95
HIERARCH ESO ISS PBLA23 START 59.9
HIERARCH ESO ISS PBLA23 END 59.9
HIERARCH ESO ISS PBL24 START 131.441
HIERARCH ESO ISS PBL24 END 131.455
HIERARCH ESO ISS PBLA24 START 19.426
HIERARCH ESO ISS PBLA24 END 19.468
HIERARCH ESO ISS PBL34 START 96.891
HIERARCH ESO ISS PBL34 END 96.888
HIERARCH ESO ISS PBLA34 START 358.235
HIERARCH ESO ISS PBLA34 END 358.316
HIERARCH ESO ISS AMBI TAU0 START 0.002765
HIERARCH ESO ISS AMBI TAU0 END 0.002507
HIERARCH ESO ISS AMBI TEMP 13.1
HIERARCH ESO ISS AMBI FWHM START 0.54
HIERARCH ESO ISS AMBI FWHM END 0.59