Exposure
ID
PIONI.2021-11-02T03:30:47.034_1
Header ID
PIONI.2021-11-02T03:30:47.034
Date updated
2021-11-02 03:36:16 UTC+0000
Release date
2022-11-02 03:36:16 UTC+0000
UTC Start
2021-11-02 03:30:47.034
UTC End
2021-11-02 03:31:12.634
MJD Start
59520.1463777116
MJD End
59520.1466740079
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003588
Ambient temperature (°C)
11.84
Seeing (arcsec)
0.79
Observation
ID
48709
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
36480
Name
eps Eri
RA
53.226763
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.0860 25.0920 135.7000 135.8000
A0-D0 27.1730 27.2120 62.9000 63.0000
A0-C1 21.2320 21.2500 111.7180 111.7220
B2-D0 31.0760 31.0830 12.4000 12.5000
B2-C1 10.3530 10.3560 12.3700 12.4580
D0-C1 20.7230 20.7280 192.4330 192.5210
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 59520.1463777116
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.226763
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 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 25.086
HIERARCH ESO ISS PBL12 END 25.092
HIERARCH ESO ISS PBLA12 START 135.7
HIERARCH ESO ISS PBLA12 END 135.8
HIERARCH ESO ISS PBL13 START 27.173
HIERARCH ESO ISS PBL13 END 27.212
HIERARCH ESO ISS PBLA13 START 62.9
HIERARCH ESO ISS PBLA13 END 63.0
HIERARCH ESO ISS PBL14 START 21.232
HIERARCH ESO ISS PBL14 END 21.25
HIERARCH ESO ISS PBLA14 START 111.718
HIERARCH ESO ISS PBLA14 END 111.722
HIERARCH ESO ISS PBL23 START 31.076
HIERARCH ESO ISS PBL23 END 31.083
HIERARCH ESO ISS PBLA23 START 12.4
HIERARCH ESO ISS PBLA23 END 12.5
HIERARCH ESO ISS PBL24 START 10.353
HIERARCH ESO ISS PBL24 END 10.356
HIERARCH ESO ISS PBLA24 START 12.37
HIERARCH ESO ISS PBLA24 END 12.458
HIERARCH ESO ISS PBL34 START 20.723
HIERARCH ESO ISS PBL34 END 20.728
HIERARCH ESO ISS PBLA34 START 192.433
HIERARCH ESO ISS PBLA34 END 192.521
HIERARCH ESO ISS AMBI TAU0 START 0.003588
HIERARCH ESO ISS AMBI TAU0 END 0.003588
HIERARCH ESO ISS AMBI TEMP 11.84
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.79