Exposure
ID
PIONI.2021-11-06T05:32:39.298_1
Header ID
PIONI.2021-11-06T05:32:39.298
Date updated
2021-11-06 05:40:49 UTC+0000
Release date
2022-11-06 05:40:49 UTC+0000
UTC Start
2021-11-06 05:32:39.298
UTC End
2021-11-06 05:33:04.898
MJD Start
59524.2310103932
MJD End
59524.2313066895
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003583
Ambient temperature (°C)
10.93
Seeing (arcsec)
0.69
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 68.0590 68.0430 272.3000 272.4000
K0-D0 95.9770 95.9770 252.5000 252.6000
K0-J3 54.4440 54.4260 334.0120 334.0740
G2-D0 39.4130 39.4240 216.7000 216.7000
G2-J3 63.8670 63.8830 43.7280 43.7680
D0-J3 103.0970 103.1230 41.0400 41.0820
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 59524.2310103932
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 68.059
HIERARCH ESO ISS PBL12 END 68.043
HIERARCH ESO ISS PBLA12 START 272.3
HIERARCH ESO ISS PBLA12 END 272.4
HIERARCH ESO ISS PBL13 START 95.977
HIERARCH ESO ISS PBL13 END 95.977
HIERARCH ESO ISS PBLA13 START 252.5
HIERARCH ESO ISS PBLA13 END 252.6
HIERARCH ESO ISS PBL14 START 54.444
HIERARCH ESO ISS PBL14 END 54.426
HIERARCH ESO ISS PBLA14 START 334.012
HIERARCH ESO ISS PBLA14 END 334.074
HIERARCH ESO ISS PBL23 START 39.413
HIERARCH ESO ISS PBL23 END 39.424
HIERARCH ESO ISS PBLA23 START 216.7
HIERARCH ESO ISS PBLA23 END 216.7
HIERARCH ESO ISS PBL24 START 63.867
HIERARCH ESO ISS PBL24 END 63.883
HIERARCH ESO ISS PBLA24 START 43.728
HIERARCH ESO ISS PBLA24 END 43.768
HIERARCH ESO ISS PBL34 START 103.097
HIERARCH ESO ISS PBL34 END 103.123
HIERARCH ESO ISS PBLA34 START 41.04
HIERARCH ESO ISS PBLA34 END 41.082
HIERARCH ESO ISS AMBI TAU0 START 0.003583
HIERARCH ESO ISS AMBI TAU0 END 0.003583
HIERARCH ESO ISS AMBI TEMP 10.93
HIERARCH ESO ISS AMBI FWHM START 0.69
HIERARCH ESO ISS AMBI FWHM END 0.69