Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 2 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)
 02/11/2020   22:33:33   (  -0.04,-137.22) (  -0.08,-137.53)   34.93                80
 02/12/2020   22:17:28   (  -0.04,-137.22) (   0.92,-133.00)  481.22                80
 02/14/2020   10:39:17   (   0.04,-137.22) (   0.27,-138.27)  120.05                80
 02/15/2020   10:17:52   (   0.04,-137.21) (  -0.73,-133.74)  395.51                80
 02/16/2020   22:39:48   (  -0.05,-137.20) (  -0.48,-139.04)  210.61                80
 02/17/2020   22:23:44   (  -0.05,-137.19) (   0.52,-134.51)  304.72                80
 02/19/2020   10:45:32   (   0.06,-137.17) (   0.67,-139.78)  297.51                80
 02/20/2020   10:24:09   (   0.06,-137.16) (  -0.39,-135.26)  217.43                80
 02/21/2020   22:46:05   (  -0.06,-137.14) (  -0.82,-140.56)  389.78                80
 02/22/2020   22:30:01   (  -0.06,-137.12) (   0.19,-136.03)  125.03                80