Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 6 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/17/2019   22:18:07   (   0.00,-137.19) (   0.92,-133.09)  467.56                80
 06/19/2019   10:39:55   (  -0.00,-137.21) (   0.27,-138.36)  131.08                80
 06/20/2019   10:18:31   (   0.00,-137.20) (  -0.73,-133.82)  384.89                80
 06/21/2019   22:40:28   (  -0.01,-137.17) (  -0.42,-139.13)  222.96                80
 06/22/2019   22:24:24   (  -0.01,-137.17) (   0.58,-134.60)  293.02                80
 06/24/2019   10:46:12   (   0.01,-137.18) (   0.60,-139.87)  305.98                80
 06/25/2019   10:24:48   (   0.02,-137.18) (  -0.40,-135.34)  209.46                80
 06/26/2019   22:46:44   (  -0.01,-137.13) (  -0.81,-140.64)  399.81                80
 06/27/2019   22:30:39   (  -0.01,-137.12) (   0.19,-136.10)  115.40                80
 06/29/2019   10:52:29   (   0.01,-137.13) (   0.93,-141.39)  484.67                80
 06/30/2019   10:33:44   (   0.01,-137.11) (  -0.07,-136.85)   29.79                80