- Update to v1.33
* Fix: running ``load.timescale(builtin=False)`` was raising an
exception ``FileNotFoundError`` if the ``finals2000A.all`` file was
not already on disk, instead of downloading the file automatically.
`#477 <https://github.com/skyfielders/python-skyfield/issues/477>`_
- v1.32
* A new :func:`~skyfield.eclipselib.lunar_eclipses()` routine finds
lunar eclipses and determines their degree of totality.
`#445 <https://github.com/skyfielders/python-skyfield/issues/445>`_
* The almanac module’s new :func:`~skyfield.almanac.meridian_transits()`
routine can find the moments at which a body transits the meridian and
antimeridian.
`#460 <https://github.com/skyfielders/python-skyfield/issues/460>`_
* Fix: the :func:`~skyfield.searchlib.find_minima()` function was
ignoring its ``epsilon`` and ``num`` arguments and always using the
default values instead.
`#475 <https://github.com/skyfielders/python-skyfield/pull/475>`_
* Fix: the ``.epoch`` attribute of Earth satellite objects that were
built using :meth:`~skyfield.sgp4lib.EarthSatellite.from_satrec()`
was, alas, a half-day off.
`#466 <https://github.com/skyfielders/python-skyfield/issues/466>`_
* Fix: the :class:`~skyfield.toposlib.Topos` constructor arguments ``x``
and ``y``, which never worked properly, have been deprecated and are
now ignored.
1.31 — 2020 October 24
----------------------
* Skyfield now uses the International Earth Rotation Service (IERS) file
``finals2000A.all`` for updated ∆T and leap seconds. The USNO is no
longer updating the files ``deltat.data`` and ``deltat.preds`` that
previous versions of Skyfield used, and the ``cddis.nasa.gov`` server
from which they were fetched will discontinue anonymous FTP on 2020
October 31. See `downloading-timescale-files`.
`#452 <https://github.com/skyfielders/python-skyfield/issues/452>`_
`#464 <https://github.com/skyfielders/python-skyfield/issues/464>`_
* The comets dataframe built from the MPC file ``CometEls.txt`` now
includes the ``reference`` column, so users can tell which orbit is
most recent if there are several orbits for a single comet. (For
example, the file currently lists two C/2020 F3 (NEOWISE) orbits.)
The comet examples in the documentation now build a dataframe that
only includes the most recent orbit for each comet.
`#463 <https://github.com/skyfielders/python-skyfield/issues/463>`_
* Two new methods :meth:`~skyfield.iokit.Loader.days_old()` and
:meth:`~skyfield.iokit.Loader.download()` make it simple to download a
fresh copy of a file if the copy on disk is older than you would like.
1.30 — 2020 October 11
----------------------
* The various ``strftime()`` Skyfield methods now support the ``%j``
day-of-year format code.
* Fix: the new Julian calendar support broke support for out-of-range
month numbers, wrapping them into the current year instead of letting
them overflow into subsequent years.
`#461 <https://github.com/skyfielders/python-skyfield/issues/461>`_
* Fix: a stray debugging ``print()`` statement was stranded in ``t.dut1``.
`#455 <https://github.com/skyfielders/python-skyfield/issues/455>`_
* The :class:`~skyfield.timelib.Time` object, if manually instantiated
without a Julian date fraction, now provides a fraction array with
dimensions that match the Julian date argument.
`#458 <https://github.com/skyfielders/python-skyfield/issues/458>`_
OBS-URL: https://build.opensuse.org/request/show/849994
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-skyfield?expand=0&rev=26
* Fix: the new Julian calendar feature was raising an
exception in the calendar methods like
`skyfield.timelib.Time.tt_calendar()` if the time
object was in fact an array of times. #450
* Fix: trying to iterate over a time object would raise an
exception if the time was created through
`~skyfield.timelib.Timescale.ut1()`.
- Version 1.28
* Broken URL: Because the VizieR archive apparently decided
to uncompress their copy of the hip_main.dat.gz Hipparcos
catalog file, the old URL now returns a 404 error. As an
emergency fix, this version of Skyfield switches to their
uncompressed hip_main.dat. Hopefully they don’t compress
it again and break the new URL! A more permanent solution
is discussed at: #454
* To unblock this release, removed a few deprecated pre-1.0
experiments from April 2015 in skyfield.hipparcos and
skyfield.named_stars that broke because the Hipparcos
catalog is no longer compressed; hopefully no one was
using them.
* In a sweeping internal change, the
`~skyfield.timelib.Timescale` and
`~skyfield.timelib.Time` objects now offer support
for the Julian calendar that’s used by historians for
dates preceding the adoption of the Gregorian calendar in
1582. See choice of calendars if you want to turn on
Julian dates in your application. #450
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-skyfield?expand=0&rev=24
* The printed appearance of both vectors and of vector
functions like Earth locations and Earth satellites
have been rewritten to be more informative and
consistent.
* Added compute_calendar_date() which lets the caller
choose the Julian calendar for ancient dates instead of
always using the proleptic Gregorian calendar. This
should be particularly useful for historians.
* Added J() that builds a time array from an array of
floating point years. #436
* Added four new strftime methods for the non-UTC
timescales (#443). All four of them support %f for
microseconds, and provide a reasonable default format
string for callers who don’t wish to concoct their own:
tai_strftime()
tt_strftime()
tdb_strftime()
ut1_strftime()
* Thanks to several fixes, comets and asteroids with
parabolic and hyperbolic orbits should now raise fewer
errors.
* The prototype planetary_magnitude() can now return
magnitudes for Uranus without raising an exception. The
routine does not yet take into account whether the
observer is facing the equator or poles of Uranus, so
the magnitude predicted for the planet will only be
accurate to within about 0.1 magnitudes.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-skyfield?expand=0&rev=22
- Update to version 1.25
* Added skyfield.data.stellarium.parse_constellations()
and skyfield.data.stellarium.parse_star_names()
to load Stellarium star names and constellation lines.
Constellation lines are featured in a new example script
neowise-chart that produces a finder chart for
comet C/2020 F3 NEOWISE.
* The Hipparcos star catalog should now load faster, having
switched behind the scenes to a higher performance Pandas
import routine.
* Fixed the ability of skyfield.timelib.Timescale.utc()
to accept a Python datetime.date object as its argument.
#409
* Slightly lowered the precision of two tests when they
detect that Python is compiled for a 32-bit processor, so
the test suite can succeed when contributors package
Skyfield for 32-bit Linux. #411
- use upstreams custom test runner 'assay'
* The runner does not have any releases yet. No package
available, so use assay-master-252.79f5d78.tar.gz directly
* drop skyfield-pr405-replace-assay-by-pytest.patch
* gh#brandon-rhodes/assay#6, gh#skyfielders/python-skyfield#405
- the unit test expect a truncated hipparcos catalog
* generate-hipparcos.sh
* hip_main.dat.gz
- drop skyfield-pr404-comparefloat.patch addressed upstream
gh#skyfielders/python-skyfield#404
gh#skyfielders/python-skyfield#411
OBS-URL: https://build.opensuse.org/request/show/822762
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-skyfield?expand=0&rev=14
* Added methods :meth:`~skyfield.timelib.Timescale.from_datetime()`
and :meth:`~skyfield.timelib.Timescale.from_datetimes()` to
the :class:`~skyfield.timelib.Timescale` class, to
better advertise the ability to build a Skyfield time
from a Python datetime — an ability that was previously
overloaded into the year parameter of the
:meth:`~skyfield.timelib.Timescale.utc()` method (where
it is still supported for backwards compatibility, but
no longer documented).
* Fix: improved the accuracy with which velocity is
converted between the Earth-fixed ITRF frame that rotates
with the Earth and the inertial GCRS frame that does not.
In particular, this should make Earth satellite
velocities more accurate.
- rebase patches skyfield-pr404-comparefloat.patch
and skyfield-pr405-replace-assay-by-pytest.patch
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-skyfield?expand=0&rev=6
