Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 11 20.  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)
 11/21/2018   05:53:46   (   0.25,-128.22) (   0.54,-126.89)  152.17                80
 11/22/2018   18:12:40   (  -0.24,-128.29) (   0.48,-131.44)  359.97                80
 11/23/2018   17:54:42   (  -0.25,-128.32) (  -0.68,-126.46)  212.17                80
 11/25/2018   06:13:43   (   0.24,-128.33) (  -0.37,-131.05)  309.84                80
 11/26/2018   05:50:25   (   0.24,-128.35) (   0.73,-126.06)  260.66                80
 11/27/2018   18:09:18   (  -0.22,-128.39) (   0.29,-130.62)  253.79                80
 11/28/2018   17:51:20   (  -0.23,-128.41) (  -0.82,-125.62)  317.57                80
 11/30/2018   06:10:22   (   0.21,-128.43) (  -0.18,-130.22)  204.29                80
 12/01/2018   05:47:04   (   0.22,-128.44) (   0.93,-125.23)  365.76                80
 12/02/2018   18:05:57   (  -0.21,-128.47) (   0.08,-129.79)  150.07                80
 12/03/2018   17:47:59   (  -0.21,-128.49) (  -1.03,-124.80)  420.97                80