Exposure
ID
PIONI.2021-11-06T05:10:46.257_1
Header ID
PIONI.2021-11-06T05:10:46.257
Date updated
2021-11-06 05:15:29 UTC+0000
Release date
2022-11-06 05:15:29 UTC+0000
UTC Start
2021-11-06 05:10:46.257
UTC End
2021-11-06 05:11:11.857
MJD Start
59524.2158131576
MJD End
59524.2161094539
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003901
Ambient temperature (°C)
10.96
Seeing (arcsec)
0.65
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 68.3480 68.3480 271.4000 271.5000
K0-D0 95.5470 95.5690 251.5000 251.6000
K0-J3 55.0530 55.0370 331.8630 331.9190
G2-D0 38.9800 38.9940 214.9000 215.0000
G2-J3 63.1520 63.1750 42.1320 42.1800
D0-J3 101.9410 101.9770 39.3740 39.4230
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 59524.2158131576
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 68.348
HIERARCH ESO ISS PBL12 END 68.348
HIERARCH ESO ISS PBLA12 START 271.4
HIERARCH ESO ISS PBLA12 END 271.5
HIERARCH ESO ISS PBL13 START 95.547
HIERARCH ESO ISS PBL13 END 95.569
HIERARCH ESO ISS PBLA13 START 251.5
HIERARCH ESO ISS PBLA13 END 251.6
HIERARCH ESO ISS PBL14 START 55.053
HIERARCH ESO ISS PBL14 END 55.037
HIERARCH ESO ISS PBLA14 START 331.863
HIERARCH ESO ISS PBLA14 END 331.919
HIERARCH ESO ISS PBL23 START 38.98
HIERARCH ESO ISS PBL23 END 38.994
HIERARCH ESO ISS PBLA23 START 214.9
HIERARCH ESO ISS PBLA23 END 215.0
HIERARCH ESO ISS PBL24 START 63.152
HIERARCH ESO ISS PBL24 END 63.175
HIERARCH ESO ISS PBLA24 START 42.132
HIERARCH ESO ISS PBLA24 END 42.18
HIERARCH ESO ISS PBL34 START 101.941
HIERARCH ESO ISS PBL34 END 101.977
HIERARCH ESO ISS PBLA34 START 39.374
HIERARCH ESO ISS PBLA34 END 39.423
HIERARCH ESO ISS AMBI TAU0 START 0.003901
HIERARCH ESO ISS AMBI TAU0 END 0.003901
HIERARCH ESO ISS AMBI TEMP 10.96
HIERARCH ESO ISS AMBI FWHM START 0.65
HIERARCH ESO ISS AMBI FWHM END 0.65