Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 5 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/23/2019   10:45:59   (  -0.01,-137.21) (   0.57,-139.85)  300.29                80
 05/24/2019   10:24:35   (   0.01,-137.21) (  -0.42,-135.31)  216.23                80
 05/25/2019   22:46:31   (  -0.01,-137.19) (  -0.81,-140.61)  390.53                80
 05/26/2019   22:30:28   (  -0.02,-137.19) (   0.25,-136.09)  125.91                80
 05/28/2019   10:52:16   (   0.02,-137.21) (   0.95,-141.36)  472.62                80
 05/29/2019   10:30:52   (   0.02,-137.21) (  -0.05,-136.82)   43.16                80
 05/31/2019   22:34:04   (  -0.01,-137.17) (  -0.12,-137.60)   49.78                80
 06/01/2019   22:18:00   (  -0.01,-137.16) (   0.88,-133.07)  465.54                80
 06/03/2019   10:39:49   (   0.00,-137.16) (   0.26,-138.35)  134.71                80
 06/04/2019   10:18:25   (   0.01,-137.15) (  -0.74,-133.81)  379.75                80
 06/05/2019   22:40:21   (  -0.00,-137.09) (  -0.47,-139.11)  230.98                80