Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 11 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/14/2020   22:40:06   (  -0.02,-137.23) (  -0.43,-139.07)  209.17                80
 11/15/2020   22:24:01   (  -0.02,-137.22) (   0.57,-134.53)  306.90                80
 11/17/2020   10:43:08   (   0.02,-137.21) (   0.57,-139.81)  294.73                80
 11/18/2020   10:27:03   (   0.02,-137.20) (  -0.43,-135.27)  220.89                80
 11/19/2020   22:46:18   (  -0.01,-137.19) (  -0.76,-140.57)  385.45                80
 11/20/2020   22:30:13   (  -0.01,-137.18) (   0.25,-136.04)  129.94                80
 11/22/2020   10:49:19   (   0.01,-137.16) (   0.95,-141.30)  472.27                80
 11/23/2020   10:33:13   (   0.01,-137.15) (  -0.05,-136.77)   43.09                80
 11/25/2020   22:33:43   (  -0.01,-137.11) (  -0.13,-137.53)   48.70                80
 11/26/2020   22:17:39   (  -0.01,-137.10) (   0.94,-133.01)  466.35                80
 11/28/2020   10:36:45   (   0.01,-137.07) (   0.26,-138.27)  136.74                80