Exposure
ID
PIONI.2021-10-29T03:31:46.203_1
Header ID
PIONI.2021-10-29T03:31:46.203
Date updated
2021-10-29 03:37:06 UTC+0000
Release date
2021-10-29 03:31:46 UTC+0000
UTC Start
2021-10-29 03:31:46.202
UTC End
2021-10-29 03:32:11.802
MJD Start
59516.1470625252
MJD End
59516.1473588215
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 24.8260 24.8350 135.4000 135.5000
A0-D0 29.9420 29.9660 61.2000 61.2000
A0-C1 21.5110 21.5270 108.9420 108.9810
B2-D0 33.3180 33.3230 15.3000 15.4000
B2-C1 11.0990 11.1010 15.2840 15.3640
D0-C1 22.2190 22.2220 195.3450 195.4250
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 59516.1470625252
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 24.826
HIERARCH ESO ISS PBL12 END 24.835
HIERARCH ESO ISS PBLA12 START 135.4
HIERARCH ESO ISS PBLA12 END 135.5
HIERARCH ESO ISS PBL13 START 29.942
HIERARCH ESO ISS PBL13 END 29.966
HIERARCH ESO ISS PBLA13 START 61.2
HIERARCH ESO ISS PBLA13 END 61.2
HIERARCH ESO ISS PBL14 START 21.511
HIERARCH ESO ISS PBL14 END 21.527
HIERARCH ESO ISS PBLA14 START 108.942
HIERARCH ESO ISS PBLA14 END 108.981
HIERARCH ESO ISS PBL23 START 33.318
HIERARCH ESO ISS PBL23 END 33.323
HIERARCH ESO ISS PBLA23 START 15.3
HIERARCH ESO ISS PBLA23 END 15.4
HIERARCH ESO ISS PBL24 START 11.099
HIERARCH ESO ISS PBL24 END 11.101
HIERARCH ESO ISS PBLA24 START 15.284
HIERARCH ESO ISS PBLA24 END 15.364
HIERARCH ESO ISS PBL34 START 22.219
HIERARCH ESO ISS PBL34 END 22.222
HIERARCH ESO ISS PBLA34 START 195.345
HIERARCH ESO ISS PBLA34 END 195.425
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