Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 2 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/12/2020   22:17:28   (  -0.03,-137.22) (   0.93,-133.00)  481.47                80
 02/14/2020   10:39:17   (   0.03,-137.22) (   0.25,-138.27)  120.05                80
 02/15/2020   10:17:52   (   0.03,-137.21) (  -0.75,-133.74)  395.82                80
 02/16/2020   22:39:49   (  -0.04,-137.21) (  -0.47,-139.04)  209.22                80
 02/17/2020   22:23:44   (  -0.04,-137.20) (   0.53,-134.51)  306.40                80
 02/19/2020   10:45:32   (   0.05,-137.19) (   0.65,-139.78)  296.06                80
 02/20/2020   10:24:08   (   0.05,-137.18) (  -0.35,-135.25)  219.17                80
 02/21/2020   22:46:05   (  -0.05,-137.16) (  -0.80,-140.56)  386.96                80
 02/22/2020   22:30:01   (  -0.05,-137.15) (   0.21,-136.03)  128.15                80
 02/24/2020   10:51:49   (   0.05,-137.13) (   0.97,-141.30)  474.77                80
 02/25/2020   10:30:25   (   0.05,-137.12) (  -0.03,-136.77)   40.01                80