Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 4 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 04/18/2018   06:27:06   (   0.07,-135.34) (  -0.18,-136.33)  114.17                80
 04/19/2018   06:09:06   (   0.07,-135.36) (   0.96,-131.35)  457.19                80
 04/20/2018   18:25:15   (  -0.08,-135.38) (   0.06,-135.91)   61.29                80
 04/23/2018   06:23:33   (   0.09,-135.42) (   0.07,-135.52)   11.74                80
 04/25/2018   18:24:22   (  -0.10,-135.44) (  -0.18,-135.09)   39.80                80
 04/27/2018   06:40:40   (   0.11,-135.47) (  -0.82,-139.70)  481.81                80
 04/28/2018   06:22:39   (   0.10,-135.48) (   0.26,-134.69)   88.61                80
 04/29/2018   18:38:49   (  -0.11,-135.48) (   0.71,-139.27)  430.79                80
 04/30/2018   18:20:48   (  -0.11,-135.49) (  -0.37,-134.27)  139.15                80