Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 11 21.  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)
 11/22/2018   18:12:40   (  -0.24,-128.29) (   0.46,-131.45)  359.77                80
 11/23/2018   17:54:42   (  -0.25,-128.32) (  -0.65,-126.46)  212.39                80
 11/25/2018   06:13:44   (   0.24,-128.33) (  -0.35,-131.06)  309.77                80
 11/26/2018   05:50:25   (   0.24,-128.35) (   0.76,-126.06)  260.78                80
 11/27/2018   18:09:19   (  -0.22,-128.40) (   0.26,-130.62)  253.38                80
 11/28/2018   17:51:20   (  -0.23,-128.42) (  -0.85,-125.63)  318.01                80
 11/30/2018   06:10:22   (   0.21,-128.43) (  -0.21,-130.22)  204.00                80
 12/01/2018   05:47:04   (   0.22,-128.44) (   0.96,-125.24)  366.11                80
 12/02/2018   18:05:56   (  -0.21,-128.48) (   0.11,-129.78)  149.47                80
 12/03/2018   17:47:59   (  -0.21,-128.50) (  -1.06,-124.80)  421.65                80
 12/05/2018   06:07:00   (   0.20,-128.52) (  -0.00,-129.39)   99.84                80