Exposure
ID
PIONI.2021-11-02T04:08:45.669_1
Header ID
PIONI.2021-11-02T04:08:45.669
Date updated
2021-11-02 04:15:57 UTC+0000
Release date
2022-11-02 04:15:57 UTC+0000
UTC Start
2021-11-02 04:08:45.669
UTC End
2021-11-02 04:09:11.269
MJD Start
59520.1727507981
MJD End
59520.1730470944
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.00376
Ambient temperature (°C)
11.57
Seeing (arcsec)
0.79
Observation
ID
48709
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
36480
Name
eps Eri
RA
53.226763
DEC
-9.45816
Instrument
Interferometer
VLTI
Instrument
PIONIER
Instrument mode
GRISM-H
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.2960 25.2960 136.8000 136.8000
A0-D0 29.3730 29.4030 66.6000 66.6000
A0-C1 22.1700 22.1810 112.2720 112.2850
B2-D0 31.6300 31.6390 17.7000 17.8000
B2-C1 10.5370 10.5400 17.6830 17.7620
D0-C1 21.0930 21.0990 197.7490 197.8280
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 59520.1727507981
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME eps Eri
RA 53.226763
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 A0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 25.6
HIERARCH ESO DET DIT 0.0005
HIERARCH ESO DET NDIT 51200
HIERARCH ESO ISS PBL12 START 25.296
HIERARCH ESO ISS PBL12 END 25.296
HIERARCH ESO ISS PBLA12 START 136.8
HIERARCH ESO ISS PBLA12 END 136.8
HIERARCH ESO ISS PBL13 START 29.373
HIERARCH ESO ISS PBL13 END 29.403
HIERARCH ESO ISS PBLA13 START 66.6
HIERARCH ESO ISS PBLA13 END 66.6
HIERARCH ESO ISS PBL14 START 22.17
HIERARCH ESO ISS PBL14 END 22.181
HIERARCH ESO ISS PBLA14 START 112.272
HIERARCH ESO ISS PBLA14 END 112.285
HIERARCH ESO ISS PBL23 START 31.63
HIERARCH ESO ISS PBL23 END 31.639
HIERARCH ESO ISS PBLA23 START 17.7
HIERARCH ESO ISS PBLA23 END 17.8
HIERARCH ESO ISS PBL24 START 10.537
HIERARCH ESO ISS PBL24 END 10.54
HIERARCH ESO ISS PBLA24 START 17.683
HIERARCH ESO ISS PBLA24 END 17.762
HIERARCH ESO ISS PBL34 START 21.093
HIERARCH ESO ISS PBL34 END 21.099
HIERARCH ESO ISS PBLA34 START 197.749
HIERARCH ESO ISS PBLA34 END 197.828
HIERARCH ESO ISS AMBI TAU0 START 0.00376
HIERARCH ESO ISS AMBI TAU0 END 0.00376
HIERARCH ESO ISS AMBI TEMP 11.57
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.79