Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 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)
 11/21/2021   06:23:38   (   0.25,-128.36) (  -0.70,-132.74)  499.13                80
 11/22/2021   06:00:19   (   0.26,-128.34) (   0.42,-127.75)   68.26                80
 11/23/2021   18:21:50   (  -0.24,-128.34) (   0.64,-132.30)  451.71                80
 11/24/2021   17:58:30   (  -0.25,-128.32) (  -0.47,-127.31)  115.41                80
 11/26/2021   06:20:10   (   0.23,-128.27) (  -0.58,-131.90)  413.49                80
 11/27/2021   05:56:50   (   0.24,-128.25) (   0.54,-126.90)  153.27                80
 11/28/2021   18:18:22   (  -0.22,-128.24) (   0.52,-131.46)  367.45                80
 11/29/2021   17:55:02   (  -0.23,-128.22) (  -0.60,-126.46)  199.17                80
 12/01/2021   06:16:41   (   0.22,-128.16) (  -0.44,-131.05)  330.46                80
 12/02/2021   05:53:22   (   0.22,-128.13) (   0.67,-126.06)  235.58                80
 12/03/2021   18:14:53   (  -0.21,-128.11) (   0.38,-130.61)  286.54                80