Exposure
ID
PIONI.2021-11-10T05:26:35.669_1
Header ID
PIONI.2021-11-10T05:26:35.669
Date updated
2021-11-10 05:30:51 UTC+0000
Release date
2022-11-10 05:30:51 UTC+0000
UTC Start
2021-11-10 05:26:35.669
UTC End
2021-11-10 05:27:01.269
MJD Start
59528.2268017242
MJD End
59528.2270980205
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002716
Ambient temperature (°C)
9.54
Seeing (arcsec)
0.64
Observation
ID
48840
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
36577
Name
eps Eri
RA
53.22732
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 G1 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 88.1400 88.0940 117.0000 117.0000
A0-J2 127.9840 127.9390 94.0000 94.0000
A0-J3 131.8900 131.9120 48.8990 48.9380
G1-J2 58.1700 58.1750 57.6000 57.7000
G1-J3 128.3790 128.3920 9.3370 9.4030
J2-J3 99.6290 99.6080 343.4990 343.5700
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 59528.2268017242
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.22732
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 G1
HIERARCH ESO ISS CONF STATION3 J2
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 88.14
HIERARCH ESO ISS PBL12 END 88.094
HIERARCH ESO ISS PBLA12 START 117.0
HIERARCH ESO ISS PBLA12 END 117.0
HIERARCH ESO ISS PBL13 START 127.984
HIERARCH ESO ISS PBL13 END 127.939
HIERARCH ESO ISS PBLA13 START 94.0
HIERARCH ESO ISS PBLA13 END 94.0
HIERARCH ESO ISS PBL14 START 131.89
HIERARCH ESO ISS PBL14 END 131.912
HIERARCH ESO ISS PBLA14 START 48.899
HIERARCH ESO ISS PBLA14 END 48.938
HIERARCH ESO ISS PBL23 START 58.17
HIERARCH ESO ISS PBL23 END 58.175
HIERARCH ESO ISS PBLA23 START 57.6
HIERARCH ESO ISS PBLA23 END 57.7
HIERARCH ESO ISS PBL24 START 128.379
HIERARCH ESO ISS PBL24 END 128.392
HIERARCH ESO ISS PBLA24 START 9.337
HIERARCH ESO ISS PBLA24 END 9.403
HIERARCH ESO ISS PBL34 START 99.629
HIERARCH ESO ISS PBL34 END 99.608
HIERARCH ESO ISS PBLA34 START 343.499
HIERARCH ESO ISS PBLA34 END 343.57
HIERARCH ESO ISS AMBI TAU0 START 0.002716
HIERARCH ESO ISS AMBI TAU0 END 0.002716
HIERARCH ESO ISS AMBI TEMP 9.54
HIERARCH ESO ISS AMBI FWHM START 0.64
HIERARCH ESO ISS AMBI FWHM END 0.64