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New GPS Kalman filter results in clearer az/el shadow maps
Since Christoph's new Kalman filter eliminates GPS outlier solutions the accumulated values from a long running shadow map will be a lot clearer. The az/el shadow map below from the gps tab on the admin page is after about 30 hours of running. You can clearly see that I live in a tall apartment building with a west facing view as everything from 0 to 180 degrees is blocked by the shadow of the building (the antenna is on the metal handrail [ground plane of sorts] of the balcony). The "polar hole" is to the south since I'm in the southern hemisphere and I have mountains to the west.