Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 12 5.  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)
 12/06/2018   05:43:42   (   0.21,-128.54) (   1.14,-124.41)  471.70                80
 12/07/2018   18:02:35   (  -0.19,-128.57) (  -0.08,-128.96)   45.13                80
 12/10/2018   06:00:58   (   0.18,-128.59) (   0.18,-128.56)    3.39                80
 12/12/2018   18:01:53   (  -0.17,-128.60) (  -0.30,-128.13)   54.31                80
 12/14/2018   06:20:55   (   0.15,-128.63) (  -0.77,-132.72)  466.38                80
 12/15/2018   05:57:36   (   0.16,-128.63) (   0.34,-127.73)  102.48                80
 12/16/2018   18:16:29   (  -0.15,-128.62) (   0.65,-132.29)  418.26                80
 12/17/2018   17:58:31   (  -0.15,-128.62) (  -0.47,-127.30)  151.31                80
 12/19/2018   06:17:32   (   0.14,-128.65) (  -0.60,-131.89)  369.43                80