Exposure
ID
PIONI.2021-11-06T05:11:24.314_1
Header ID
PIONI.2021-11-06T05:11:24.314
Date updated
2021-11-06 05:20:46 UTC+0000
Release date
2022-11-06 05:20:46 UTC+0000
UTC Start
2021-11-06 05:11:24.314
UTC End
2021-11-06 05:11:49.914
MJD Start
59524.2162536294
MJD End
59524.2165499257
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0038025
Ambient temperature (°C)
10.96
Seeing (arcsec)
0.665
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 68.3470 271.5000 271.5000
K0-D0 95.5700 95.5910 251.6000 251.6000
K0-J3 55.0360 55.0200 331.9220 331.9780
G2-D0 38.9940 39.0070 215.0000 215.0000
G2-J3 63.1760 63.1990 42.1820 42.2290
D0-J3 101.9790 102.0150 39.4260 39.4750
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 59524.2162536294
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 68.347
HIERARCH ESO ISS PBLA12 START 271.5
HIERARCH ESO ISS PBLA12 END 271.5
HIERARCH ESO ISS PBL13 START 95.57
HIERARCH ESO ISS PBL13 END 95.591
HIERARCH ESO ISS PBLA13 START 251.6
HIERARCH ESO ISS PBLA13 END 251.6
HIERARCH ESO ISS PBL14 START 55.036
HIERARCH ESO ISS PBL14 END 55.02
HIERARCH ESO ISS PBLA14 START 331.922
HIERARCH ESO ISS PBLA14 END 331.978
HIERARCH ESO ISS PBL23 START 38.994
HIERARCH ESO ISS PBL23 END 39.007
HIERARCH ESO ISS PBLA23 START 215.0
HIERARCH ESO ISS PBLA23 END 215.0
HIERARCH ESO ISS PBL24 START 63.176
HIERARCH ESO ISS PBL24 END 63.199
HIERARCH ESO ISS PBLA24 START 42.182
HIERARCH ESO ISS PBLA24 END 42.229
HIERARCH ESO ISS PBL34 START 101.979
HIERARCH ESO ISS PBL34 END 102.015
HIERARCH ESO ISS PBLA34 START 39.426
HIERARCH ESO ISS PBLA34 END 39.475
HIERARCH ESO ISS AMBI TAU0 START 0.003901
HIERARCH ESO ISS AMBI TAU0 END 0.003704
HIERARCH ESO ISS AMBI TEMP 10.96
HIERARCH ESO ISS AMBI FWHM START 0.65
HIERARCH ESO ISS AMBI FWHM END 0.68