xseof

Overview

I/O library for the ESA EOF files.

This package provides a set of "dataclasses", comapible with the xsdata Python library, to access and make I/O operation on the XML files in the ESA Earth Observation Ground Segment File Format (EOF) [1].

In particular, this package supports all the XML based orbit and attitude products described in [1].

Project links

Home Page:	https://github.com/avalentino/xseof
Download:	https://pypi.org/project/xseof

Installation

Standard installation via pip:

$ pip install xseof

Installation via conda:

$ conda install -c avalentino xseof

Testing

Move to the the source directory root and run the following command:

$ python3 -m pytest

Basic usage

Load a generic orbit file:

>>> import xseof
>>> orbit = xseof.load(
        "MA1_TEST_AUX_ORBRES_20210610T045753_20210610T065853_0001.EOF")

Access and print loaded data:

>>> import pprint
>>> orbit.earth_observation_header.fixed_header.notes = ""
>>> pprint.pprint(orbit.earth_observation_header.fixed_header)
FixedHeaderType(
    file_name='MA1_TEST_AUX_ORBRES_20210610T045753_20210610T065853_0001',
    file_description='FOS Orbit File',
    notes='',
    mission='MetOpSGA1',
    file_class='TEST',
    file_type='AUX_ORBRES',
    validity_period=ValidityPeriodType(
        validity_start='UTC=2021-06-10T04:57:53',
        validity_stop='UTC=2021-06-10T05:02:23'),
    file_version='0001',
    eoffs_version='3.0',
    source=SourceType(system='System Identification as per Ground '
                            'Segment File Format Standard '
                            '(PE-TN-ESA-GS-0001)',
                    creator='Creator Identification as per '
                            'Ground Segment File Format Standard '
                            '(PE-TN-ESA-GS-0001)',
                    creator_version='Creator Version '
                                    'Identification as per '
                                    'Ground Segment File Format '
                                    'Standard '
                                    '(PE-TN-ESA-GS-0001)',
                    creation_date='UTC=2022-06-23T10:06:43'))

>>> print(orbit.data_block.list_of_osvs.count)
10
>>> pprint.pprint(orbit.data_block.list_of_osvs.osv[0])
OsvType(tai='TAI=2021-06-10T04:57:17.817060',
    utc='UTC=2021-06-10T04:57:52.817060',
    ut1='UT1=2021-06-10T04:57:53.117059',
    absolute_orbit=999,
    x=PositionComponentType(value=Decimal('-1606749.988'), unit='m'),
    y=PositionComponentType(value=Decimal('-5677008.966'), unit='m'),
    z=PositionComponentType(value=Decimal('-4135675.595'), unit='m'),
    vx=VelocityComponentType(value=Decimal('-2876.652288'), unit='m/s'),
    vy=VelocityComponentType(value=Decimal('-3541.028256'), unit='m/s'),
    vz=VelocityComponentType(value=Decimal('5985.303441'), unit='m/s'),
    quality='0000000000000')

Load an EOF file of a specific type:

>>> from xseof import int_attref
>>> quaternions = int_attref.load(
        "MA1_TEST_INT_ATTREF_20210610T045753_20210610T065853_0001.EOF")

Load data form string:

>>> from xseof import aux_orbres
>>> filename = "MA1_TEST_AUX_ORBRES_20210610T045753_20210610T065853_0001.EOF"
>>> with open(filename) as fd:
...     data = fd.read()
>>> orbit = aux_orbres.from_string(data)

License

Copyright 2022-2023 Antonio Valentino

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific langua

[1]	(1, 2) https://eop-cfi.esa.int/Repo/PUBLIC/DOCUMENTATION/SYSTEM_SUPPORT_DOCS/PE-TN-ESA-GS-0001%20EO%20GS%20File%20Format%20Standard%203.0%20signed.pdf