NDASpectrogram#

class radiospectra.spectrogram.NDASpectrogram(data, meta, **kwargs)[source]#

Bases: GenericSpectrogram

Nançay Decameter Array (NDA) Spectrogram.

This spectrogram supports data in the NewRoutine format available here: https://cdn.obs-nancay.fr/repository/nda/newroutine/soleil/

Frequencies range from approximately 10 MHz to 88 MHz. The data contains two polarization channels (LL and RR).

Examples

>>> import radiospectra.net
>>> from sunpy.net import Fido, attrs as a
>>> from radiospectra.spectrogram import Spectrogram
>>> query = Fido.search(a.Time("2025-03-26", "2025-03-27"), a.Instrument("NDA"))
>>> downloaded = Fido.fetch(query[0][0])
>>> spec = Spectrogram(downloaded[0])
>>> spec[0]
<NDASpectrogram ORN, NDA, NEWROUTINE 10009.765625 kHz - 87988.28125 kHz, 2025-03-26T07:56:27.260 to 2025-03-26T15:55:59.892>

Attributes Summary

`detector`	The detector which recorded the spectrogram.
`end_time`	The end time of the spectrogram.
`frequencies`	The frequencies of the spectrogram.
`instrument`	The name of the instrument which recorded the spectrogram.
`observatory`	The name of the observatory which recorded the spectrogram.
`observatory_location`
`polarisation`
`start_time`	The start time of the spectrogram.
`times`	The times of the spectrogram.
`wavelength`	The wavelength range of the spectrogram.

Methods Summary

`is_datasource_for`(data, meta, **kwargs)
`plot`([axes])	Plot the spectrogram.
`plotim`([fig, axes])

Attributes Documentation

detector#: The detector which recorded the spectrogram.

end_time#: The end time of the spectrogram.

frequencies#: The frequencies of the spectrogram.

instrument#: The name of the instrument which recorded the spectrogram.

observatory#: The name of the observatory which recorded the spectrogram.

observatory_location#

polarisation#

start_time#: The start time of the spectrogram.

times#: The times of the spectrogram.

wavelength#: The wavelength range of the spectrogram.

Methods Documentation

classmethod is_datasource_for(data, meta, **kwargs)[source]#

plot(axes=None, **kwargs)#

Plot the spectrogram.

Parameters:

axes (matplotlib.axes.Axes, optional) – The axes where the plot will be added.
kwargs – Arguments pass to the plot call pcolormesh.

Return type:

matplotlib.collections.QuadMesh

plotim(fig=None, axes=None, **kwargs)#