Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 11 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/15/2020   22:24:01   (  -0.02,-137.22) (   0.59,-134.53)  306.86                80
 11/17/2020   10:43:08   (   0.02,-137.21) (   0.61,-139.80)  294.65                80
 11/18/2020   10:27:02   (   0.02,-137.21) (  -0.39,-135.26)  220.97                80
 11/19/2020   22:46:17   (  -0.01,-137.19) (  -0.80,-140.56)  385.47                80
 11/20/2020   22:30:13   (  -0.01,-137.18) (   0.27,-136.04)  129.96                80
 11/22/2020   10:49:19   (   0.01,-137.16) (   0.93,-141.30)  472.17                80
 11/23/2020   10:33:14   (   0.01,-137.15) (  -0.07,-136.77)   43.11                80
 11/25/2020   22:33:44   (  -0.01,-137.11) (  -0.11,-137.54)   48.56                80
 11/26/2020   22:17:38   (  -0.01,-137.10) (   0.90,-133.00)  466.39                80
 11/28/2020   10:36:44   (   0.01,-137.07) (   0.30,-138.27)  136.61                80
 11/29/2020   10:20:39   (   0.01,-137.05) (  -0.71,-133.73)  377.90                80