Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 8 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/28/2019   10:25:00   (  -0.03,-137.20) (  -0.45,-135.33)  212.68                80
 08/29/2019   22:46:57   (   0.03,-137.19) (  -0.75,-140.63)  392.39                80
 08/30/2019   22:30:52   (   0.03,-137.19) (   0.27,-136.10)  123.41                80
 09/01/2019   10:52:40   (  -0.03,-137.17) (   0.88,-141.38)  478.35                80
 09/02/2019   10:33:55   (  -0.03,-137.16) (  -0.08,-136.83)   37.29                80
 09/04/2019   22:34:27   (   0.04,-137.14) (  -0.09,-137.60)   53.56                80
 09/05/2019   22:18:22   (   0.04,-137.13) (   0.93,-133.07)  461.49                80
 09/07/2019   10:40:11   (  -0.04,-137.10) (   0.22,-138.35)  141.66                80
 09/08/2019   10:18:46   (  -0.04,-137.08) (  -0.80,-133.82)  372.96                80
 09/09/2019   22:40:43   (   0.05,-137.06) (  -0.39,-139.12)  234.18                80
 09/10/2019   22:24:37   (   0.05,-137.04) (   0.58,-134.58)  280.27                80