Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 10 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/14/2019   10:46:20   (  -0.01,-137.21) (   0.58,-139.84)  300.87                80
 10/15/2019   10:27:36   (  -0.01,-137.20) (  -0.45,-135.32)  215.29                80
 10/16/2019   22:46:51   (   0.02,-137.20) (  -0.76,-140.62)  390.56                80
 10/17/2019   22:28:06   (  -0.00,-137.19) (   0.22,-136.08)  125.71                80
 10/19/2019   10:52:33   (   0.01,-137.18) (   0.97,-141.35)  476.47                80
 10/20/2019   10:31:08   (   0.00,-137.16) (  -0.07,-136.83)   38.39                80
 10/22/2019   22:36:59   (  -0.00,-137.12) (  -0.10,-137.60)   54.40                80
 10/23/2019   22:15:34   (   0.00,-137.10) (   0.88,-133.06)  460.02                80
 10/25/2019   10:40:01   (   0.00,-137.08) (   0.31,-138.33)  143.44                80
 10/26/2019   10:18:37   (   0.01,-137.06) (  -0.74,-133.81)  370.83                80
 10/27/2019   22:43:12   (  -0.02,-137.02) (  -0.47,-139.11)  237.21                80