Modis is decent, but NASA Worldview is much better, IMO. The biggest difference is that with the NASA site, you can see the GPS coordinates in the lower right as you move your mouse around. This is great because you can find a transition edge and take a picture of the coordinates with your phone and drive right to it. Note: this only works on a device with a mouse. Otherwise, you won’t see the coordinates. Also, you might need to change the format of the GPS numbers to match your unit, but that’s easy.