Exposure
ID
PIONI.2021-11-04T05:38:48.578_1
Header ID
PIONI.2021-11-04T05:38:48.578
Date updated
2021-11-04 05:46:04 UTC+0000
Release date
2022-11-04 05:46:04 UTC+0000
UTC Start
2021-11-04 05:38:48.578
UTC End
2021-11-04 05:39:14.178
MJD Start
59522.2352844733
MJD End
59522.2355807696
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.008295
Ambient temperature (°C)
11.04
Seeing (arcsec)
0.33
Observation
ID
48737
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
36501
Name
eps Eri
RA
53.227324
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
K0 B2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-B2 122.0890 122.1070 241.6000 241.6000
K0-D0 95.9710 95.9730 252.5000 252.5000
K0-J3 54.4930 54.4750 333.8340 333.8950
B2-D0 33.2400 33.2490 28.5000 28.5000
B2-J3 135.6670 135.7040 37.8880 37.9330
D0-J3 103.0200 103.0470 40.9180 40.9600
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 59522.2352844733
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.227324
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 B2
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 122.089
HIERARCH ESO ISS PBL12 END 122.107
HIERARCH ESO ISS PBLA12 START 241.6
HIERARCH ESO ISS PBLA12 END 241.6
HIERARCH ESO ISS PBL13 START 95.971
HIERARCH ESO ISS PBL13 END 95.973
HIERARCH ESO ISS PBLA13 START 252.5
HIERARCH ESO ISS PBLA13 END 252.5
HIERARCH ESO ISS PBL14 START 54.493
HIERARCH ESO ISS PBL14 END 54.475
HIERARCH ESO ISS PBLA14 START 333.834
HIERARCH ESO ISS PBLA14 END 333.895
HIERARCH ESO ISS PBL23 START 33.24
HIERARCH ESO ISS PBL23 END 33.249
HIERARCH ESO ISS PBLA23 START 28.5
HIERARCH ESO ISS PBLA23 END 28.5
HIERARCH ESO ISS PBL24 START 135.667
HIERARCH ESO ISS PBL24 END 135.704
HIERARCH ESO ISS PBLA24 START 37.888
HIERARCH ESO ISS PBLA24 END 37.933
HIERARCH ESO ISS PBL34 START 103.02
HIERARCH ESO ISS PBL34 END 103.047
HIERARCH ESO ISS PBLA34 START 40.918
HIERARCH ESO ISS PBLA34 END 40.96
HIERARCH ESO ISS AMBI TAU0 START 0.008295
HIERARCH ESO ISS AMBI TAU0 END 0.008295
HIERARCH ESO ISS AMBI TEMP 11.04
HIERARCH ESO ISS AMBI FWHM START 0.33
HIERARCH ESO ISS AMBI FWHM END 0.33