Exposure
ID
PIONI.2021-11-07T05:33:58.186_1
Header ID
PIONI.2021-11-07T05:33:58.186
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 05:33:58.186
UTC End
2021-11-07 05:34:23.786
MJD Start
59525.2319234456
MJD End
59525.2322197419
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.006455
Ambient temperature (°C)
12.28
Seeing (arcsec)
0.56
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 67.8990 67.8790 272.6000 272.6000
K0-D0 95.9640 95.9600 252.7000 252.7000
K0-J3 54.2900 54.2720 334.5500 334.6140
G2-D0 39.5020 39.5110 217.1000 217.1000
G2-J3 64.0020 64.0160 44.0550 44.0930
D0-J3 103.3210 103.3460 41.3840 41.4240
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 59525.2319234456
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 67.899
HIERARCH ESO ISS PBL12 END 67.879
HIERARCH ESO ISS PBLA12 START 272.6
HIERARCH ESO ISS PBLA12 END 272.6
HIERARCH ESO ISS PBL13 START 95.964
HIERARCH ESO ISS PBL13 END 95.96
HIERARCH ESO ISS PBLA13 START 252.7
HIERARCH ESO ISS PBLA13 END 252.7
HIERARCH ESO ISS PBL14 START 54.29
HIERARCH ESO ISS PBL14 END 54.272
HIERARCH ESO ISS PBLA14 START 334.55
HIERARCH ESO ISS PBLA14 END 334.614
HIERARCH ESO ISS PBL23 START 39.502
HIERARCH ESO ISS PBL23 END 39.511
HIERARCH ESO ISS PBLA23 START 217.1
HIERARCH ESO ISS PBLA23 END 217.1
HIERARCH ESO ISS PBL24 START 64.002
HIERARCH ESO ISS PBL24 END 64.016
HIERARCH ESO ISS PBLA24 START 44.055
HIERARCH ESO ISS PBLA24 END 44.093
HIERARCH ESO ISS PBL34 START 103.321
HIERARCH ESO ISS PBL34 END 103.346
HIERARCH ESO ISS PBLA34 START 41.384
HIERARCH ESO ISS PBLA34 END 41.424
HIERARCH ESO ISS AMBI TAU0 START 0.006704
HIERARCH ESO ISS AMBI TAU0 END 0.006206
HIERARCH ESO ISS AMBI TEMP 12.28
HIERARCH ESO ISS AMBI FWHM START 0.56
HIERARCH ESO ISS AMBI FWHM END 0.56