Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 10 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)
 10/17/2019   22:30:46   (  -0.01,-137.20) (   0.24,-136.08)  127.81                80
 10/19/2019   10:52:33   (   0.01,-137.20) (   0.94,-141.35)  473.66                80
 10/20/2019   10:31:09   (   0.00,-137.19) (  -0.10,-136.83)   41.93                80
 10/22/2019   22:34:20   (   0.00,-137.17) (  -0.08,-137.60)   48.95                80
 10/23/2019   22:15:34   (   0.00,-137.16) (   0.90,-133.07)  466.24                80
 10/25/2019   10:40:01   (   0.00,-137.14) (   0.28,-138.34)  136.25                80
 10/26/2019   10:18:37   (   0.01,-137.13) (  -0.76,-133.81)  378.79                80
 10/27/2019   22:40:32   (  -0.02,-137.11) (  -0.45,-139.11)  227.97                80
 10/28/2019   22:24:27   (  -0.02,-137.09) (   0.54,-134.58)  286.74                80
 10/30/2019   10:46:14   (   0.03,-137.07) (   0.65,-139.85)  316.69                80