Exposure
ID
PIONI.2021-10-29T03:31:08.086_1
Header ID
PIONI.2021-10-29T03:31:08.086
Date updated
2021-10-29 03:37:06 UTC+0000
Release date
2021-10-29 03:31:08 UTC+0000
UTC Start
2021-10-29 03:31:08.085
UTC End
2021-10-29 03:31:33.685
MJD Start
59516.1466213595
MJD End
59516.1469176558
Exposure time (s)
25.6
Validation level
1
Tau 0: Coherence time (s)
0.005068
Ambient temperature (°C)
13.3
Seeing (arcsec)
0.78
Observation
ID
48668
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
36448
Name
tau02 Eri
RA
42.758281
DEC
-21.0041
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 24.8170 24.8260 135.4000 135.4000
A0-D0 29.9160 29.9410 61.1000 61.1000
A0-C1 21.4940 21.5100 108.9010 108.9400
B2-D0 33.3140 33.3180 15.2000 15.3000
B2-C1 11.0980 11.0990 15.2000 15.2800
D0-C1 22.2160 22.2190 195.2610 195.3410
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 59516.1466213595
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME tau02 Eri
RA 42.758281
DEC -21.0041
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 24.817
HIERARCH ESO ISS PBL12 END 24.826
HIERARCH ESO ISS PBLA12 START 135.4
HIERARCH ESO ISS PBLA12 END 135.4
HIERARCH ESO ISS PBL13 START 29.916
HIERARCH ESO ISS PBL13 END 29.941
HIERARCH ESO ISS PBLA13 START 61.1
HIERARCH ESO ISS PBLA13 END 61.1
HIERARCH ESO ISS PBL14 START 21.494
HIERARCH ESO ISS PBL14 END 21.51
HIERARCH ESO ISS PBLA14 START 108.901
HIERARCH ESO ISS PBLA14 END 108.94
HIERARCH ESO ISS PBL23 START 33.314
HIERARCH ESO ISS PBL23 END 33.318
HIERARCH ESO ISS PBLA23 START 15.2
HIERARCH ESO ISS PBLA23 END 15.3
HIERARCH ESO ISS PBL24 START 11.098
HIERARCH ESO ISS PBL24 END 11.099
HIERARCH ESO ISS PBLA24 START 15.2
HIERARCH ESO ISS PBLA24 END 15.28
HIERARCH ESO ISS PBL34 START 22.216
HIERARCH ESO ISS PBL34 END 22.219
HIERARCH ESO ISS PBLA34 START 195.261
HIERARCH ESO ISS PBLA34 END 195.341
HIERARCH ESO ISS AMBI TAU0 START 0.005068
HIERARCH ESO ISS AMBI TAU0 END 0.005068
HIERARCH ESO ISS AMBI TEMP 13.3
HIERARCH ESO ISS AMBI FWHM START 0.78
HIERARCH ESO ISS AMBI FWHM END 0.78