Abstract: A computer implemented method of validating an output from a GNSS at a receiver including a fusion system comprising location sensors. A location estimate and a location error estimate are computed. A navigation update including a sensor location estimate and sensor location error estimate is also computed with the fusion system based on sensor measurements from the location sensors. A determination is made as to whether or not GNSS filters should be applied based at least on the location estimate, the sensor location estimate, and the sensor location error estimate. When GNSS filters should be applied, the location estimate and/or the location error estimate may be adjusted or rejected and a new navigation update may be computed with the fusion system based on the adjustment or rejection. When the GNSS filters should not be applied, the new navigation update is computed with the location estimate and the location error estimate.

Abstract: A portable sunlight shelter for protecting a motorized vehicle from direct sunlight is disclosed. The sunlight shelter consists of lightweight, elongated structural supports which are attached to the front and rear of a motorized vehicle. Ropes are threaded through the structural support ends above the vehicle to support a flexible material which provides shade. The structural supports, attaching means, and flexible material are easy to put into place and remove. The removable part of the apparatus is easily compacted and stored in the motorized vehicle.