Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 11 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)
 11/28/2019   22:42:58   (  -0.00,-137.20) (  -0.43,-139.11)  216.88                80
 11/29/2019   22:21:33   (   0.00,-137.20) (   0.57,-134.57)  298.91                80
 12/01/2019   10:46:00   (  -0.00,-137.19) (   0.58,-139.84)  302.19                80
 12/02/2019   10:24:34   (  -0.01,-137.18) (  -0.42,-135.31)  213.37                80
 12/03/2019   22:49:10   (   0.00,-137.17) (  -0.79,-140.61)  392.71                80
 12/04/2019   22:27:45   (   0.01,-137.16) (   0.27,-136.08)  122.70                80
 12/06/2019   10:52:11   (  -0.00,-137.14) (   0.93,-141.35)  478.92                80
 12/07/2019   10:30:46   (  -0.01,-137.13) (  -0.07,-136.81)   36.18                80
 12/09/2019   22:36:36   (  -0.00,-137.09) (  -0.13,-137.58)   56.02                80
 12/10/2019   22:15:11   (   0.00,-137.07) (   0.93,-133.05)  458.48                80
 12/12/2019   10:39:38   (   0.01,-137.04) (   0.27,-138.32)  144.85                80