Exposure
ID
PIONI.2021-11-02T05:10:23.761_1
Header ID
PIONI.2021-11-02T05:10:23.761
Date updated
2021-11-02 05:16:30 UTC+0000
Release date
2022-11-02 05:16:30 UTC+0000
UTC Start
2021-11-02 05:10:23.761
UTC End
2021-11-02 05:10:49.361
MJD Start
59520.2155527864
MJD End
59520.2158490827
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0033875
Ambient temperature (°C)
11.23
Seeing (arcsec)
0.765
Observation
ID
48710
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
36481
Name
eps Eri
RA
53.226764
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 24.9740 24.9670 140.2000 140.2000
A0-D0 31.5930 31.6060 70.7000 70.8000
A0-C1 22.6020 22.6000 114.3280 114.3550
B2-D0 32.6760 32.6860 25.0000 25.1000
B2-C1 10.8850 10.8880 24.9800 25.0420
D0-C1 21.7910 21.7980 205.0450 205.1070
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 59520.2155527864
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.226764
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 24.974
HIERARCH ESO ISS PBL12 END 24.967
HIERARCH ESO ISS PBLA12 START 140.2
HIERARCH ESO ISS PBLA12 END 140.2
HIERARCH ESO ISS PBL13 START 31.593
HIERARCH ESO ISS PBL13 END 31.606
HIERARCH ESO ISS PBLA13 START 70.7
HIERARCH ESO ISS PBLA13 END 70.8
HIERARCH ESO ISS PBL14 START 22.602
HIERARCH ESO ISS PBL14 END 22.6
HIERARCH ESO ISS PBLA14 START 114.328
HIERARCH ESO ISS PBLA14 END 114.355
HIERARCH ESO ISS PBL23 START 32.676
HIERARCH ESO ISS PBL23 END 32.686
HIERARCH ESO ISS PBLA23 START 25.0
HIERARCH ESO ISS PBLA23 END 25.1
HIERARCH ESO ISS PBL24 START 10.885
HIERARCH ESO ISS PBL24 END 10.888
HIERARCH ESO ISS PBLA24 START 24.98
HIERARCH ESO ISS PBLA24 END 25.042
HIERARCH ESO ISS PBL34 START 21.791
HIERARCH ESO ISS PBL34 END 21.798
HIERARCH ESO ISS PBLA34 START 205.045
HIERARCH ESO ISS PBLA34 END 205.107
HIERARCH ESO ISS AMBI TAU0 START 0.003217
HIERARCH ESO ISS AMBI TAU0 END 0.003558
HIERARCH ESO ISS AMBI TEMP 11.23
HIERARCH ESO ISS AMBI FWHM START 0.76
HIERARCH ESO ISS AMBI FWHM END 0.77