Exposure
ID
PIONI.2021-11-02T05:40:09.958_1
Header ID
PIONI.2021-11-02T05:40:09.958
Date updated
2021-11-02 05:47:11 UTC+0000
Release date
2021-11-02 05:40:09 UTC+0000
UTC Start
2021-11-02 05:40:09.959
UTC End
2021-11-02 05:40:35.559
MJD Start
59520.2362263729
MJD End
59520.2365226692
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.002686
Ambient temperature (°C)
11.27
Seeing (arcsec)
0.895
Observation
ID
48672
Category
calibrator
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
36452
Name
32 Eri A
RA
58.571934
DEC
-2.95473
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 24.3770 24.3660 139.8000 139.9000
A0-D0 31.5850 31.5980 72.1000 72.1000
A0-C1 22.4510 22.4440 114.1300 114.1450
B2-D0 31.7690 31.7830 26.8000 26.9000
B2-C1 10.5820 10.5870 26.7510 26.8090
D0-C1 21.1870 21.1960 206.8170 206.8750
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.227F.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE FRINGE,OBJECT
MJD-OBS 59520.2362263729
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME 32 Eri A
RA 58.571934
DEC -2.95473
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 24.377
HIERARCH ESO ISS PBL12 END 24.366
HIERARCH ESO ISS PBLA12 START 139.8
HIERARCH ESO ISS PBLA12 END 139.9
HIERARCH ESO ISS PBL13 START 31.585
HIERARCH ESO ISS PBL13 END 31.598
HIERARCH ESO ISS PBLA13 START 72.1
HIERARCH ESO ISS PBLA13 END 72.1
HIERARCH ESO ISS PBL14 START 22.451
HIERARCH ESO ISS PBL14 END 22.444
HIERARCH ESO ISS PBLA14 START 114.13
HIERARCH ESO ISS PBLA14 END 114.145
HIERARCH ESO ISS PBL23 START 31.769
HIERARCH ESO ISS PBL23 END 31.783
HIERARCH ESO ISS PBLA23 START 26.8
HIERARCH ESO ISS PBLA23 END 26.9
HIERARCH ESO ISS PBL24 START 10.582
HIERARCH ESO ISS PBL24 END 10.587
HIERARCH ESO ISS PBLA24 START 26.751
HIERARCH ESO ISS PBLA24 END 26.809
HIERARCH ESO ISS PBL34 START 21.187
HIERARCH ESO ISS PBL34 END 21.196
HIERARCH ESO ISS PBLA34 START 206.817
HIERARCH ESO ISS PBLA34 END 206.875
HIERARCH ESO ISS AMBI TAU0 START 0.002612
HIERARCH ESO ISS AMBI TAU0 END 0.00276
HIERARCH ESO ISS AMBI TEMP 11.27
HIERARCH ESO ISS AMBI FWHM START 0.91
HIERARCH ESO ISS AMBI FWHM END 0.88