nenupy.observation.obs_config.BSTConfig

class nenupy.observation.obs_config.BSTConfig(**kwargs)[source]

Bases: _BackendConfig

Beamlet Statistics observation configuration.

Parameters:

nSubBands (int) – Number of sub-bands (min: 1, max: 768, default: 768).
nPolars (int) – Number of polarizations (min: 1, max: 2, default: 2).
durationSec (int or TimeDelta) – Observation duration in seconds (default: 0).

Added in version 1.2.0.

__init__(**kwargs)[source]

Methods

`__init__`(**kwargs)
`fromParset`(parset)	Returns a `BSTConfig` instance in which BST observation configuration properties are set as defined by the `parset`.

Attributes

`dsTime`	Downsampling, can take values in [1, 2, 4, 8, 16, 32, 64, 128]
`durationSec`
`freqRes`
`nBins`
`nBits`
`nChannels`
`nMAs`
`nPolars`
`nSubBands`
`tFold`
`timeRes`
`volume`	Computes an estimation of the data volume of a BST FITS file.

property dsTime: Downsampling, can take values in [1, 2, 4, 8, 16, 32, 64, 128]

property durationSec

property freqRes

classmethod fromParset(parset)[source]

Returns a BSTConfig instance in which BST observation configuration properties are set as defined by the parset.

Parameters:

parset (str or Parset) – Observation parset file.

Returns:

BST configuration as defined by the parset file.

Return type:

BSTConfig

Example:

>>> from nenupy.observation import BSTConfig
>>> bstconf = BSTConfig.fromParset('nenufar_obs.parset')

property nBins

property nBits

property nChannels

property nMAs

property nPolars

property nSubBands

property tFold

property timeRes

property volume

Computes an estimation of the data volume of a BST FITS file.

Getter:

Data volume.

Type:

Quantity

Example:

>>> from nenupy.observation import BSTConfig
>>> bstconf = BSTConfig(
        durationSec=3600
    )
>>> bstconf.volume
21.09375 Mibyte

>>> from nenupy.observation import BSTConfig
>>> bstconf = BSTConfig.fromParset(
        'nenufar_obs.parset'
    )
>>> bstconf.volume
XXX Mibyte

Warning

The data volume estimation does not handle specificities of the FITS file in which the BST are stored (in particular metadata and FITS architecture). Therefore, the volume may be underestimated by a few MB.