Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 11 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/16/2019   10:24:42   (   0.01,-137.21) (  -0.39,-135.31)  215.66                80
 11/17/2019   22:46:39   (   0.00,-137.20) (  -0.76,-140.63)  389.86                80
 11/18/2019   22:30:33   (   0.01,-137.20) (   0.23,-136.09)  125.78                80
 11/20/2019   10:52:21   (  -0.01,-137.19) (   0.92,-141.36)  476.04                80
 11/21/2019   10:30:55   (  -0.01,-137.18) (  -0.07,-136.83)   39.32                80
 11/23/2019   22:34:06   (   0.01,-137.15) (  -0.09,-137.60)   51.69                80
 11/24/2019   22:15:20   (   0.01,-137.13) (   0.91,-133.07)  463.45                80
 11/26/2019   10:39:47   (   0.00,-137.11) (   0.30,-138.33)  139.15                80
 11/27/2019   10:18:22   (   0.00,-137.09) (  -0.75,-133.80)  375.42                80
 11/28/2019   22:42:58   (  -0.01,-137.06) (  -0.45,-139.10)  232.18                80
 11/29/2019   22:21:32   (  -0.00,-137.04) (   0.55,-134.57)  282.08                80