Exposure
ID
PIONI.2021-11-06T04:51:53.224_1
Header ID
PIONI.2021-11-06T04:51:53.224
Date updated
2021-11-06 05:00:45 UTC+0000
Release date
2022-11-06 05:00:45 UTC+0000
UTC Start
2021-11-06 04:51:53.224
UTC End
2021-11-06 04:52:18.824
MJD Start
59524.2026993521
MJD End
59524.2029956484
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003944
Ambient temperature (°C)
11.0
Seeing (arcsec)
0.63
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 68.1070 68.1220 270.7000 270.7000
K0-D0 94.5640 94.6030 250.6000 250.6000
K0-J3 55.5220 55.5080 330.2180 330.2680
G2-D0 38.5330 38.5480 213.2000 213.2000
G2-J3 62.3530 62.3810 40.5360 40.5900
D0-J3 100.6890 100.7320 37.7180 37.7750
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 59524.2026993521
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 68.107
HIERARCH ESO ISS PBL12 END 68.122
HIERARCH ESO ISS PBLA12 START 270.7
HIERARCH ESO ISS PBLA12 END 270.7
HIERARCH ESO ISS PBL13 START 94.564
HIERARCH ESO ISS PBL13 END 94.603
HIERARCH ESO ISS PBLA13 START 250.6
HIERARCH ESO ISS PBLA13 END 250.6
HIERARCH ESO ISS PBL14 START 55.522
HIERARCH ESO ISS PBL14 END 55.508
HIERARCH ESO ISS PBLA14 START 330.218
HIERARCH ESO ISS PBLA14 END 330.268
HIERARCH ESO ISS PBL23 START 38.533
HIERARCH ESO ISS PBL23 END 38.548
HIERARCH ESO ISS PBLA23 START 213.2
HIERARCH ESO ISS PBLA23 END 213.2
HIERARCH ESO ISS PBL24 START 62.353
HIERARCH ESO ISS PBL24 END 62.381
HIERARCH ESO ISS PBLA24 START 40.536
HIERARCH ESO ISS PBLA24 END 40.59
HIERARCH ESO ISS PBL34 START 100.689
HIERARCH ESO ISS PBL34 END 100.732
HIERARCH ESO ISS PBLA34 START 37.718
HIERARCH ESO ISS PBLA34 END 37.775
HIERARCH ESO ISS AMBI TAU0 START 0.004005
HIERARCH ESO ISS AMBI TAU0 END 0.003883
HIERARCH ESO ISS AMBI TEMP 11.0
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.63