Exposure
ID
PIONI.2021-10-29T05:55:41.184_1
Header ID
PIONI.2021-10-29T05:55:41.184
Date updated
2021-10-29 06:01:47 UTC+0000
Release date
2021-10-29 05:55:41 UTC+0000
UTC Start
2021-10-29 05:55:41.184
UTC End
2021-10-29 05:56:06.784
MJD Start
59516.2470044401
MJD End
59516.2473007364
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.0060735
Ambient temperature (°C)
12.3
Seeing (arcsec)
0.435
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 24.3820 24.3700 139.8000 139.9000
A0-D0 31.5810 31.5930 72.1000 72.1000
A0-C1 22.4530 22.4470 114.1270 114.1420
B2-D0 31.7640 31.7780 26.8000 26.8000
B2-C1 10.5810 10.5850 26.7330 26.7910
D0-C1 21.1830 21.1930 206.7990 206.8570
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 59516.2470044401
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 24.382
HIERARCH ESO ISS PBL12 END 24.37
HIERARCH ESO ISS PBLA12 START 139.8
HIERARCH ESO ISS PBLA12 END 139.9
HIERARCH ESO ISS PBL13 START 31.581
HIERARCH ESO ISS PBL13 END 31.593
HIERARCH ESO ISS PBLA13 START 72.1
HIERARCH ESO ISS PBLA13 END 72.1
HIERARCH ESO ISS PBL14 START 22.453
HIERARCH ESO ISS PBL14 END 22.447
HIERARCH ESO ISS PBLA14 START 114.127
HIERARCH ESO ISS PBLA14 END 114.142
HIERARCH ESO ISS PBL23 START 31.764
HIERARCH ESO ISS PBL23 END 31.778
HIERARCH ESO ISS PBLA23 START 26.8
HIERARCH ESO ISS PBLA23 END 26.8
HIERARCH ESO ISS PBL24 START 10.581
HIERARCH ESO ISS PBL24 END 10.585
HIERARCH ESO ISS PBLA24 START 26.733
HIERARCH ESO ISS PBLA24 END 26.791
HIERARCH ESO ISS PBL34 START 21.183
HIERARCH ESO ISS PBL34 END 21.193
HIERARCH ESO ISS PBLA34 START 206.799
HIERARCH ESO ISS PBLA34 END 206.857
HIERARCH ESO ISS AMBI TAU0 START 0.005877
HIERARCH ESO ISS AMBI TAU0 END 0.00627
HIERARCH ESO ISS AMBI TEMP 12.3
HIERARCH ESO ISS AMBI FWHM START 0.47
HIERARCH ESO ISS AMBI FWHM END 0.4