Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 10 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/12/2019   22:21:53   (  -0.00,-137.20) (   0.59,-134.57)  299.22                80
 10/14/2019   10:46:20   (   0.00,-137.19) (   0.60,-139.84)  301.82                80
 10/15/2019   10:24:55   (  -0.00,-137.19) (  -0.44,-135.32)  213.73                80
 10/16/2019   22:46:51   (  -0.00,-137.17) (  -0.77,-140.62)  392.98                80
 10/17/2019   22:30:46   (   0.00,-137.16) (   0.26,-136.09)  122.07                80
 10/19/2019   10:52:34   (   0.00,-137.14) (   0.92,-141.36)  480.65                80
 10/20/2019   10:33:48   (  -0.00,-137.12) (  -0.06,-136.82)   33.78                80
 10/22/2019   22:34:19   (   0.00,-137.06) (  -0.11,-137.60)   60.66                80
 10/23/2019   22:18:13   (   0.00,-137.04) (   0.87,-133.06)  453.29                80
 10/25/2019   10:37:21   (  -0.00,-137.01) (   0.32,-138.33)  150.83                80