Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 12 12.  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)
 12/14/2018   06:20:55   (   0.15,-128.62) (  -0.75,-132.72)  467.60                80
 12/15/2018   05:57:36   (   0.16,-128.62) (   0.36,-127.73)  101.02                80
 12/16/2018   18:16:29   (  -0.15,-128.60) (   0.69,-132.28)  419.89                80
 12/17/2018   17:58:30   (  -0.15,-128.61) (  -0.42,-127.29)  149.48                80
 12/19/2018   06:17:33   (   0.14,-128.63) (  -0.59,-131.89)  371.72                80
 12/20/2018   05:54:14   (   0.15,-128.62) (   0.53,-126.90)  196.13                80
 12/21/2018   18:13:06   (  -0.14,-128.58) (   0.52,-131.45)  327.04                80
 12/22/2018   17:55:08   (  -0.14,-128.58) (  -0.60,-126.46)  241.33                80
 12/24/2018   06:14:10   (   0.12,-128.59) (  -0.41,-131.06)  280.46                80
 12/25/2018   05:50:52   (   0.13,-128.58) (   0.70,-126.06)  286.58                80
 12/26/2018   18:09:44   (  -0.11,-128.52) (   0.34,-130.62)  238.59                80