Tcat

class gdt.missions.fermi.gbm.tcat.Tcat

Bases: FitsFileContextManager

TCAT (Trigger CATalog) file class.

Attributes Summary

fermi_location	Fermi's orbital longitude and latitude
filename	The filename
hdulist	The list of Header Data Units
headers	The headers
localizing_instrument	The localizing instrument
location	Location in equatorial coordinates
name	Name of the trigger
num_hdus	The number of HDUs
time_range	The time range
trigtime	The trigger time

Methods Summary

close()	Close the file
column(hdu_num, col_name)	Return a column from an HDU as an array.
columns_as_array(hdu_num, col_names[, dtype])	Return a list of columns from an HDU as an array.
get_column_names(hdu_num)	Get the column names in a HDU.
open(file_path, **kwargs)	Open a TCAT FITS file and return the Tcat object
write(directory[, filename])	Write the file to disk.

Attributes Documentation

fermi_location

Fermi’s orbital longitude and latitude

Type:

(astropy.coordinates.Longitude, astropy.coordinates.Latitude)

filename

The filename

Type:

(str)

hdulist

The list of Header Data Units

Type:

(astropy.io.fits.hdu.HDUList)

headers

The headers

Type:

(FileHeaders)

localizing_instrument

The localizing instrument

Type:

(str)

location

Location in equatorial coordinates

Type:

(astropy.coordinates.SkyCoord)

name

Name of the trigger

Type:

(str)

num_hdus

The number of HDUs

Type:

(int)

time_range

The time range

Type:

(TimeRange)

trigtime

The trigger time

Type:

(float)

Methods Documentation

close()

Close the file

column(hdu_num: int, col_name: str) → array

Return a column from an HDU as an array.

Parameters:

• hdu_num (int) – The HDU number

• col_name (str) – The name of the column

Returns:

(np.array)

columns_as_array(hdu_num: int, col_names: List[str], dtype: dtype = None) → array

Return a list of columns from an HDU as an array.

Parameters:

• hdu_num (int) – The HDU number

• col_names (list of str) – The names of the columns

• dtype (np.dtype, optional) – The custom dtype of the output array

Returns:

(np.array)

get_column_names(hdu_num: int)

Get the column names in a HDU. Returns empty if there is no data extension in the HDU.

Parameters:

hdu_num (int) – The HDU number

Returns:

(tuple)

classmethod open(file_path, **kwargs)

Open a TCAT FITS file and return the Tcat object

Parameters:

file_path (str) – The file path of the FITS file

Returns:

(Tcat)

write(directory: Union[str, Path], filename: str = None, **kwargs)

Write the file to disk.

Parameters:

• directory (str) – The directory to write the file.

• filename (str, optional) – The filename. If omitted, attempts to use the filename if set.