Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/11/2020   10:37:13   (   0.03,-137.19) (   0.29,-138.30)  127.01                80
 10/12/2020   10:21:08   (   0.03,-137.18) (  -0.76,-133.78)  388.54                80
 10/13/2020   22:40:24   (  -0.03,-137.17) (  -0.44,-139.08)  217.20                80
 10/14/2020   22:24:18   (  -0.03,-137.16) (   0.55,-134.54)  298.19                80
 10/16/2020   10:43:25   (   0.02,-137.14) (   0.63,-139.81)  304.88                80
 10/17/2020   10:27:20   (   0.03,-137.13) (  -0.36,-135.28)  210.13                80
 10/18/2020   22:46:36   (  -0.02,-137.10) (  -0.77,-140.59)  396.77                80
 10/19/2020   22:30:31   (  -0.03,-137.09) (   0.22,-136.06)  117.76                80
 10/21/2020   10:49:38   (   0.02,-137.05) (   0.96,-141.33)  486.69                80
 10/22/2020   10:33:33   (   0.02,-137.03) (  -0.03,-136.79)   27.30                80