pycrtools.tasks.loraanalysis

LoraAnalysis([ws, parfile])	Refitting particle data using different shower parameters
Task([ws, parfile])	Base class from which all tasks should be derived.
fit_lora_ldf(core_x, core_y, azimuth, ...[, ...])
get_distance(core, direction, positions)	Calculate distance in shower axis
get_uvw(pos, cx, cy, zen, az)
leastsq(func, x0[, args, Dfun, full_output, ...])	Minimize the sum of squares of a set of equations.
lora_error_function(p, data, err, lpos, cx, ...)
lora_fit_function(p, x)
lora_ldf(nch, rm, s, lpos, cx, cy, az, zen)

Module documentation

Fitting LORA data for new shower parameters. Currently implemented for different directions and core positions. Defaults are for set-up pf 20 LORA stations. Run as (all parameters are of shape as default in database):

cr.trun(“LoraAnalysis”,particles_lora=particles_lora, azimuth=azimuth, elevation=elevation,core=core, core_type=core_type,use_title=True,save_plots=True,plot_prefix=’./’,plotlist=[])

Will return fit parameters as well as plots when they are stored by save_plots

Module author: Anna Nelles <a.nelles@astro.ru.nl>

class pycrtools.tasks.loraanalysis.LoraAnalysis(ws=None, parfile=None, **kwargs)

Refitting particle data using different shower parameters

Input parameters

azimuth [default value: None ]

Azimuth of arriving cosmic ray (LOFAR convention)

core [default value: None ]

New core position that should be fitted

core_type [default value: “LORA” ]

Type of core that is fitted, label on axis

elevation [default value: None ]

Elevation of arriving cosmic ray (LOFAR convention)

lora_x [default value: [11.21, -29.79, -57.79, -3.79, -120.79, -82.79, -162.79, -134.79, 78.21, 155.21, 112.21, 133.21, 74.21, 118.21, 41.21, 80.21, -53.79, 3.21, -2.79, -48.79] ]

Database parameter lora_posx, Set to default to 20 stations set-up

lora_y [default value: [-94.07, -83.07, -125.07, -158.07, 3.93, -40.07, -26.07, -74.07, 75.93, 50.93, 24.93, 100.93, -121.07, -93.07, -76.07, -40.07, 129.93, 111.93, 61.93, 56.93] ]

Database parameter lora_posy, Set to default to 20 stations set-up

lora_z [default value: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0] ]

Database parameter lora_posz, Set to default to 20 stations set-up

particles_lora [default value: None ]

Database parameter lora_particle_density__m2

plot_prefix [default value: ”./” ]

Where to store the figures

plot_type

Plot type (e.g. png, jpeg, pdf)

plotlist [default value: [] ]

Plot list for website

save_plots [default value: False ]

Save the new particle LDF

use_title [default value: “True” ]

Plot with title

Output parameters

lora_chi [default value: None ]

Chi square of fit with new core

lora_fit_parameters [default value: None ]

Best fitting parameters of fit, N_charged, R_moliere

lora_ndof [default value: None ]

Number of degrees of freedom of fit

lora_red_chi [default value: None ]

Reduced chi square of fit with new core

run()

Run the task.

pycrtools.tasks.loraanalysis.get_distance(core, direction, positions)

Calculate distance in shower axis