Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 4 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 04/22/2018   00:44:16   (  -0.05,-135.41) (   0.73,-131.93)  396.05                80
 04/23/2018   13:14:22   (   0.03,-135.42) (   1.03,-139.79)  499.18                80
 04/24/2018   13:02:50   (   0.04,-135.43) (   0.38,-136.98)  176.41                80
 04/25/2018   12:53:57   (   0.04,-135.44) (  -0.26,-134.16)  146.33                80
 04/26/2018   12:42:25   (   0.05,-135.45) (  -0.91,-131.35)  469.02                80
 04/28/2018   01:12:48   (  -0.03,-135.48) (  -0.93,-139.27)  432.38                80
 04/29/2018   01:01:16   (  -0.03,-135.49) (  -0.29,-136.45)  110.03                80
 04/30/2018   00:52:24   (  -0.03,-135.50) (   0.42,-133.65)  212.29                80
 05/02/2018   13:10:56   (   0.01,-135.51) (   0.76,-138.68)  361.95                80
 05/03/2018   12:59:24   (   0.02,-135.51) (   0.11,-135.86)   40.18                80
 05/04/2018   12:50:31   (   0.02,-135.51) (  -0.55,-133.05)  281.46                80