Exposure
ID
PIONI.2021-11-02T05:46:20.272_1
Header ID
PIONI.2021-11-02T05:46:20.272
Date updated
2021-11-02 05:51:26 UTC+0000
Release date
2022-11-02 05:51:26 UTC+0000
UTC Start
2021-11-02 05:46:20.272
UTC End
2021-11-02 05:46:45.872
MJD Start
59520.2405124125
MJD End
59520.2408087088
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002766
Ambient temperature (°C)
11.28
Seeing (arcsec)
0.92
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 24.4690 24.4590 143.1000 143.2000
A0-D0 32.0010 32.0020 72.4000 72.5000
A0-C1 22.2410 22.2320 116.2360 116.2710
B2-D0 33.2360 33.2440 28.4000 28.5000
B2-C1 11.0710 11.0740 28.3860 28.4360
D0-C1 22.1650 22.1700 208.4490 208.4990
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 59520.2405124125
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 24.469
HIERARCH ESO ISS PBL12 END 24.459
HIERARCH ESO ISS PBLA12 START 143.1
HIERARCH ESO ISS PBLA12 END 143.2
HIERARCH ESO ISS PBL13 START 32.001
HIERARCH ESO ISS PBL13 END 32.002
HIERARCH ESO ISS PBLA13 START 72.4
HIERARCH ESO ISS PBLA13 END 72.5
HIERARCH ESO ISS PBL14 START 22.241
HIERARCH ESO ISS PBL14 END 22.232
HIERARCH ESO ISS PBLA14 START 116.236
HIERARCH ESO ISS PBLA14 END 116.271
HIERARCH ESO ISS PBL23 START 33.236
HIERARCH ESO ISS PBL23 END 33.244
HIERARCH ESO ISS PBLA23 START 28.4
HIERARCH ESO ISS PBLA23 END 28.5
HIERARCH ESO ISS PBL24 START 11.071
HIERARCH ESO ISS PBL24 END 11.074
HIERARCH ESO ISS PBLA24 START 28.386
HIERARCH ESO ISS PBLA24 END 28.436
HIERARCH ESO ISS PBL34 START 22.165
HIERARCH ESO ISS PBL34 END 22.17
HIERARCH ESO ISS PBLA34 START 208.449
HIERARCH ESO ISS PBLA34 END 208.499
HIERARCH ESO ISS AMBI TAU0 START 0.002766
HIERARCH ESO ISS AMBI TAU0 END 0.002766
HIERARCH ESO ISS AMBI TEMP 11.28
HIERARCH ESO ISS AMBI FWHM START 0.92
HIERARCH ESO ISS AMBI FWHM END 0.92