Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 5 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/07/2019   10:45:51   (   0.00,-137.21) (   0.59,-139.82)  297.28                80
 05/08/2019   10:24:27   (  -0.00,-137.21) (  -0.46,-135.30)  218.29                80
 05/09/2019   22:46:23   (   0.00,-137.17) (  -0.79,-140.59)  390.24                80
 05/10/2019   22:30:20   (   0.00,-137.16) (   0.26,-136.07)  125.20                80
 05/12/2019   10:52:08   (  -0.00,-137.18) (   0.94,-141.34)  474.22                80
 05/13/2019   10:30:45   (  -0.00,-137.17) (  -0.11,-136.82)   40.77                80
 05/15/2019   22:33:57   (   0.00,-137.11) (  -0.13,-137.58)   54.28                80
 05/16/2019   22:17:53   (   0.01,-137.10) (   0.92,-133.06)  460.65                80
 05/18/2019   10:39:41   (  -0.01,-137.10) (   0.28,-138.32)  139.61                80
 05/19/2019   10:18:18   (  -0.01,-137.08) (  -0.77,-133.80)  374.50                80