Exposure
ID
PIONI.2021-11-07T05:32:03.908_1
Header ID
PIONI.2021-11-07T05:32:03.908
Date updated
2021-11-07 05:40:42 UTC+0000
Release date
2022-11-07 05:40:41 UTC+0000
UTC Start
2021-11-07 05:32:03.908
UTC End
2021-11-07 05:32:29.508
MJD Start
59525.2306007924
MJD End
59525.2308970887
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0066075
Ambient temperature (°C)
12.2
Seeing (arcsec)
0.685
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 67.9620 67.9430 272.5000 272.5000
K0-D0 95.9740 95.9720 252.7000 252.7000
K0-J3 54.3460 54.3290 334.3530 334.4170
G2-D0 39.4700 39.4800 216.9000 217.0000
G2-J3 63.9550 63.9700 43.9390 43.9770
D0-J3 103.2420 103.2670 41.2620 41.3030
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 59525.2306007924
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 67.962
HIERARCH ESO ISS PBL12 END 67.943
HIERARCH ESO ISS PBLA12 START 272.5
HIERARCH ESO ISS PBLA12 END 272.5
HIERARCH ESO ISS PBL13 START 95.974
HIERARCH ESO ISS PBL13 END 95.972
HIERARCH ESO ISS PBLA13 START 252.7
HIERARCH ESO ISS PBLA13 END 252.7
HIERARCH ESO ISS PBL14 START 54.346
HIERARCH ESO ISS PBL14 END 54.329
HIERARCH ESO ISS PBLA14 START 334.353
HIERARCH ESO ISS PBLA14 END 334.417
HIERARCH ESO ISS PBL23 START 39.47
HIERARCH ESO ISS PBL23 END 39.48
HIERARCH ESO ISS PBLA23 START 216.9
HIERARCH ESO ISS PBLA23 END 217.0
HIERARCH ESO ISS PBL24 START 63.955
HIERARCH ESO ISS PBL24 END 63.97
HIERARCH ESO ISS PBLA24 START 43.939
HIERARCH ESO ISS PBLA24 END 43.977
HIERARCH ESO ISS PBL34 START 103.242
HIERARCH ESO ISS PBL34 END 103.267
HIERARCH ESO ISS PBLA34 START 41.262
HIERARCH ESO ISS PBLA34 END 41.303
HIERARCH ESO ISS AMBI TAU0 START 0.006511
HIERARCH ESO ISS AMBI TAU0 END 0.006704
HIERARCH ESO ISS AMBI TEMP 12.2
HIERARCH ESO ISS AMBI FWHM START 0.67
HIERARCH ESO ISS AMBI FWHM END 0.7