Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 4 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 04/28/2018   18:21:01   (  -0.10,-135.48) (  -0.71,-132.67)  319.84                80
 04/30/2018   06:37:22   (   0.11,-135.48) (  -0.30,-137.27)  203.94                80
 05/01/2018   06:19:22   (   0.11,-135.49) (   0.84,-132.28)  365.82                80
 05/02/2018   18:35:33   (  -0.12,-135.50) (   0.19,-136.84)  152.67                80
 05/03/2018   18:17:33   (  -0.12,-135.50) (  -0.94,-131.85)  416.59                80
 05/05/2018   06:33:53   (   0.13,-135.50) (  -0.06,-136.45)  108.43                80
 05/06/2018   06:15:53   (   0.13,-135.50) (   1.02,-131.45)  460.59                80
 05/07/2018   18:34:44   (  -0.14,-135.50) (  -0.05,-136.02)   58.94                80
 05/10/2018   06:30:24   (   0.14,-135.48) (   0.13,-135.62)   16.35                80