Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 10 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/16/2020   21:43:39   (   0.14,-128.37) (   0.88,-125.10)  372.70                80
 10/18/2020   10:05:26   (  -0.13,-128.37) (   0.30,-130.37)  228.11                80
 10/19/2020   09:49:21   (  -0.14,-128.35) (  -0.69,-125.83)  286.94                80
 10/20/2020   22:11:16   (   0.13,-128.32) (  -0.51,-131.14)  320.93                80
 10/21/2020   21:49:52   (   0.14,-128.30) (   0.54,-126.61)  193.46                80
 10/23/2020   10:14:18   (  -0.13,-128.29) (   0.69,-131.87)  408.80                80
 10/24/2020   09:52:54   (  -0.14,-128.27) (  -0.36,-127.35)  105.69                80
 10/26/2020   21:56:03   (   0.14,-128.22) (   0.16,-128.11)   11.99                80
 10/29/2020   10:01:45   (  -0.13,-128.18) (   0.02,-128.85)   76.37                80