Exposure
ID
PIONI.2021-11-07T05:17:43.488_1
Header ID
PIONI.2021-11-07T05:17:43.488
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 05:17:43.488
UTC End
2021-11-07 05:18:09.088
MJD Start
59525.2206422193
MJD End
59525.2209385156
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005464
Ambient temperature (°C)
12.34
Seeing (arcsec)
0.55
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 68.2800 68.2720 271.9000 271.9000
K0-D0 95.8570 95.8690 252.0000 252.1000
K0-J3 54.7570 54.7400 332.8980 332.9570
G2-D0 39.2080 39.2200 215.8000 215.9000
G2-J3 63.5380 63.5580 42.9580 43.0010
D0-J3 102.5590 102.5900 40.2340 40.2800
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 59525.2206422193
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 68.28
HIERARCH ESO ISS PBL12 END 68.272
HIERARCH ESO ISS PBLA12 START 271.9
HIERARCH ESO ISS PBLA12 END 271.9
HIERARCH ESO ISS PBL13 START 95.857
HIERARCH ESO ISS PBL13 END 95.869
HIERARCH ESO ISS PBLA13 START 252.0
HIERARCH ESO ISS PBLA13 END 252.1
HIERARCH ESO ISS PBL14 START 54.757
HIERARCH ESO ISS PBL14 END 54.74
HIERARCH ESO ISS PBLA14 START 332.898
HIERARCH ESO ISS PBLA14 END 332.957
HIERARCH ESO ISS PBL23 START 39.208
HIERARCH ESO ISS PBL23 END 39.22
HIERARCH ESO ISS PBLA23 START 215.8
HIERARCH ESO ISS PBLA23 END 215.9
HIERARCH ESO ISS PBL24 START 63.538
HIERARCH ESO ISS PBL24 END 63.558
HIERARCH ESO ISS PBLA24 START 42.958
HIERARCH ESO ISS PBLA24 END 43.001
HIERARCH ESO ISS PBL34 START 102.559
HIERARCH ESO ISS PBL34 END 102.59
HIERARCH ESO ISS PBLA34 START 40.234
HIERARCH ESO ISS PBLA34 END 40.28
HIERARCH ESO ISS AMBI TAU0 START 0.005464
HIERARCH ESO ISS AMBI TAU0 END 0.005464
HIERARCH ESO ISS AMBI TEMP 12.34
HIERARCH ESO ISS AMBI FWHM START 0.55
HIERARCH ESO ISS AMBI FWHM END 0.55