Exposure
ID
PIONI.2021-11-02T03:10:41.145_1
Header ID
PIONI.2021-11-02T03:10:41.145
Date updated
2021-11-02 03:16:31 UTC+0000
Release date
2022-11-02 03:16:31 UTC+0000
UTC Start
2021-11-02 03:10:41.145
UTC End
2021-11-02 03:11:06.745
MJD Start
59520.1324206619
MJD End
59520.1327169582
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.003579
Ambient temperature (°C)
11.99
Seeing (arcsec)
0.84
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 24.8410 24.8500 135.5000 135.5000
A0-D0 25.8040 25.8460 60.5000 60.5000
A0-C1 20.5330 20.5560 111.6580 111.6570
B2-D0 30.8480 30.8540 9.4000 9.5000
B2-C1 10.2770 10.2790 9.3590 9.4500
D0-C1 20.5700 20.5740 189.4200 189.5110
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 59520.1324206619
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 24.841
HIERARCH ESO ISS PBL12 END 24.85
HIERARCH ESO ISS PBLA12 START 135.5
HIERARCH ESO ISS PBLA12 END 135.5
HIERARCH ESO ISS PBL13 START 25.804
HIERARCH ESO ISS PBL13 END 25.846
HIERARCH ESO ISS PBLA13 START 60.5
HIERARCH ESO ISS PBLA13 END 60.5
HIERARCH ESO ISS PBL14 START 20.533
HIERARCH ESO ISS PBL14 END 20.556
HIERARCH ESO ISS PBLA14 START 111.658
HIERARCH ESO ISS PBLA14 END 111.657
HIERARCH ESO ISS PBL23 START 30.848
HIERARCH ESO ISS PBL23 END 30.854
HIERARCH ESO ISS PBLA23 START 9.4
HIERARCH ESO ISS PBLA23 END 9.5
HIERARCH ESO ISS PBL24 START 10.277
HIERARCH ESO ISS PBL24 END 10.279
HIERARCH ESO ISS PBLA24 START 9.359
HIERARCH ESO ISS PBLA24 END 9.45
HIERARCH ESO ISS PBL34 START 20.57
HIERARCH ESO ISS PBL34 END 20.574
HIERARCH ESO ISS PBLA34 START 189.42
HIERARCH ESO ISS PBLA34 END 189.511
HIERARCH ESO ISS AMBI TAU0 START 0.003579
HIERARCH ESO ISS AMBI TAU0 END 0.003579
HIERARCH ESO ISS AMBI TEMP 11.99
HIERARCH ESO ISS AMBI FWHM START 0.84
HIERARCH ESO ISS AMBI FWHM END 0.84