irfpy.vima.background

VEX/IMA background proxy module

It provides a getter of background proxy.

The best-practice is to use DataCenterVimaBackground class as follows.

>>> from irfpy.vima import background
>>> dc = background.DataCenterVimaBackground()
>>> import datetime
>>> tobs, (back, total) = dc.nearest(datetime.datetime(2009, 12, 28, 6, 10))
>>> print(tobs)   # Observed time nearest to the given time (2009-12-28T06:10)
2009-12-28 06:11:34.837000
>>> print(back)   # Background count
5.18
>>> print(total)   # Total count
15778.0
class irfpy.vima.background.DataCenterVimaBackground[source]

Bases: irfpy.imacommon.background.DataCenterBackground

VEX IMA background data center

irfpy.vima.background.isdb()[source]
irfpy.vima.background.get_background_level(t0, t1, refresh=False, base=None)[source]

Get VEX background level.

Parameters

  • t0 – Time start.

  • t1 – Time end.

  • refresh – If True, a new database is created.

  • base – Give base path of the dataset. If None, the dataset path is given from .irfpyrc.

Returns

(time array, bg array).

>>> import datetime
>>> t0 = datetime.datetime(2006, 12, 4)
>>> t1 = datetime.datetime(2006, 12, 7)
>>> bg = get_background_level(t0, t1)
>>> print(len(bg[1]))
225
irfpy.vima.background.doctests()[source]