Exposure
ID
PIONI.2021-11-07T05:19:37.782_1
Header ID
PIONI.2021-11-07T05:19:37.782
Date updated
2021-11-07 05:26:19 UTC+0000
Release date
2022-11-07 05:26:19 UTC+0000
UTC Start
2021-11-07 05:19:37.782
UTC End
2021-11-07 05:20:03.382
MJD Start
59525.2219650657
MJD End
59525.222261362
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006142
Ambient temperature (°C)
12.36
Seeing (arcsec)
0.52
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 68.2530 68.2430 272.0000 272.0000
K0-D0 95.8920 95.9010 252.1000 252.2000
K0-J3 54.7040 54.6870 333.0850 333.1440
G2-D0 39.2460 39.2570 216.0000 216.0000
G2-J3 63.6000 63.6190 43.0950 43.1370
D0-J3 102.6580 102.6890 40.3770 40.4220
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 59525.2219650657
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 68.253
HIERARCH ESO ISS PBL12 END 68.243
HIERARCH ESO ISS PBLA12 START 272.0
HIERARCH ESO ISS PBLA12 END 272.0
HIERARCH ESO ISS PBL13 START 95.892
HIERARCH ESO ISS PBL13 END 95.901
HIERARCH ESO ISS PBLA13 START 252.1
HIERARCH ESO ISS PBLA13 END 252.2
HIERARCH ESO ISS PBL14 START 54.704
HIERARCH ESO ISS PBL14 END 54.687
HIERARCH ESO ISS PBLA14 START 333.085
HIERARCH ESO ISS PBLA14 END 333.144
HIERARCH ESO ISS PBL23 START 39.246
HIERARCH ESO ISS PBL23 END 39.257
HIERARCH ESO ISS PBLA23 START 216.0
HIERARCH ESO ISS PBLA23 END 216.0
HIERARCH ESO ISS PBL24 START 63.6
HIERARCH ESO ISS PBL24 END 63.619
HIERARCH ESO ISS PBLA24 START 43.095
HIERARCH ESO ISS PBLA24 END 43.137
HIERARCH ESO ISS PBL34 START 102.658
HIERARCH ESO ISS PBL34 END 102.689
HIERARCH ESO ISS PBLA34 START 40.377
HIERARCH ESO ISS PBLA34 END 40.422
HIERARCH ESO ISS AMBI TAU0 START 0.006142
HIERARCH ESO ISS AMBI TAU0 END 0.006142
HIERARCH ESO ISS AMBI TEMP 12.36
HIERARCH ESO ISS AMBI FWHM START 0.52
HIERARCH ESO ISS AMBI FWHM END 0.52