Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 23.  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)
 06/24/2018   18:41:01   (  -0.16,-134.99) (   0.45,-137.65)  303.76                80
 06/25/2018   18:17:42   (  -0.17,-135.03) (  -0.70,-132.67)  268.93                80
 06/27/2018   06:39:20   (   0.15,-135.07) (  -0.35,-137.26)  249.64                80
 06/28/2018   06:16:00   (   0.17,-135.10) (   0.81,-132.27)  322.69                80
 06/29/2018   18:37:31   (  -0.15,-135.16) (   0.24,-136.83)  190.33                80
 06/30/2018   18:14:11   (  -0.18,-135.19) (  -0.91,-131.84)  381.60                80
 07/02/2018   06:35:50   (   0.15,-135.22) (  -0.14,-136.43)  137.96                80
 07/03/2018   06:12:30   (   0.18,-135.25) (   1.02,-131.44)  433.73                80
 07/04/2018   18:34:00   (  -0.15,-135.30) (   0.02,-136.00)   80.02                80
 07/05/2018   18:10:41   (  -0.17,-135.33) (  -1.13,-131.02)  491.33                80
 07/07/2018   06:32:19   (   0.15,-135.35) (   0.08,-135.60)   29.13                80