Lightkurve

===================

- Deprecated the ``TargetPixelFile.header`` property and ``LightCurveFile.header()``
method in favor of a consistent ``get_header()`` method. [736]

- Fixed a bug in ``tpf.interact_sky()`` which caused star positions to be off
by half a pixel. [734]

===================

- Added the ``query_solar_system_objects()`` method to search for solar system
objects in ``TargetPixelFile`` and ``LightCurve`` objects. [714]

- Added the ``extra_columns`` attribute to ``LightCurve`` objects. [724]

- Fixed the URL to the Point Response Function (PRF) files in ``KeplerPRF``. [727]

- Fixed a bug which caused searches to fail with Astroquery v0.4.1 and later. [728]

- Fixed a bug in ``TargetPixelFile.interact_sky()`` which caused high proper
motion stars to be shown at incorrect locations. [730]

==================

- Increased the speed of ``search_lightcurvefile()`` and
``search_targetpixelfile()`` by a factor ~10x. [715]

- Fixed an issue which caused ``interact()`` and ``interact_bls()`` to be
incompatible with Bokeh v2.0.0. [716]

- Fixed a bug in `LightCurve.bin()` which caused the method to fail if the
``quality`` array has a floating point data type. [705]

==================

- Added an experimental ``TessPLDCorrector`` class designed to correct TESS FFI
light curves by detrending against local pixel time series. [687]

- Added a ``LightCurve.plot_river()`` method to plot river diagrams, which uses
colors to visualize fluxes by period cycle (row) and phase (column). [625]

- Added caching to `search_tesscut` to avoid requesting an identical cut out
more than once. [481]

==================

- Added the ``Seismology.interact_echelle()`` method for creating interactive
asteroseismic echelle diagrams. [625]

- Added ``odd_mask`` and ``even_mask`` properties to ``FoldedLightCurve`` to
make it easy to plot odd- and even-numbered transits. [425]

- Fixed a bug which caused ``TargetPixelFile.interact()`` to raise a
``ValueError`` if the pixel file contained NaN flux values. [679]

- Fixed minor issues in the tutorials. [662, 683]

==================

- Added a ``scale='linear'`` option to ``TargetPixelFile.interact()`` to show
pixels using a linear stretch. The default is ``scale='log'``. [664]

- Added a warning if ``SFFCorrector`` is used to correct TESS data. [660]

- Added improved sigma-clipping inside ``RegressionCorrector``. [654]

- Fixed a bug which caused ``LightCurve.show_properties()`` to raise a
``ValueError`` when the time format was not set. [655]

- Fixed a bug which caused ``TargetPixelFile.interact()`` to crash if the
pipeline aperture mask did not contain pixels. [667]

- Fixed a bug which caused ``RegressionCorrector.correct()`` to crash if the
input light curve contained flux uncertainties <= 0. [668]