Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 12 16.  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)
 12/17/2018   17:58:31   (  -0.15,-128.61) (  -0.48,-127.30)  150.17                80
 12/19/2018   06:17:32   (   0.14,-128.63) (  -0.59,-131.89)  371.55                80
 12/20/2018   05:54:14   (   0.15,-128.62) (   0.52,-126.90)  196.39                80
 12/21/2018   18:13:06   (  -0.14,-128.59) (   0.52,-131.45)  325.99                80
 12/22/2018   17:55:08   (  -0.14,-128.59) (  -0.59,-126.46)  242.50                80
 12/24/2018   06:14:10   (   0.12,-128.60) (  -0.42,-131.06)  279.79                80
 12/25/2018   05:50:52   (   0.13,-128.58) (   0.70,-126.06)  287.32                80
 12/26/2018   18:09:44   (  -0.11,-128.53) (   0.34,-130.62)  237.04                80
 12/27/2018   17:51:45   (  -0.12,-128.53) (  -0.77,-125.62)  330.94                80
 12/29/2018   06:10:47   (   0.10,-128.54) (  -0.29,-130.21)  190.92                80
 12/30/2018   05:47:28   (   0.11,-128.52) (   0.82,-125.22)  375.95                80