Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 3 8.  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)
 03/08/2021   17:57:51   (   0.14,-128.40) (  -0.13,-127.25)  131.14                80
 03/10/2021   06:19:29   (  -0.15,-128.32) (  -0.96,-131.83)  400.30                80
 03/11/2021   05:56:10   (  -0.14,-128.33) (   0.18,-126.84)  169.86                80
 03/12/2021   18:17:42   (   0.15,-128.44) (   0.79,-131.41)  338.29                80
 03/13/2021   17:54:22   (   0.15,-128.45) (  -0.28,-126.41)  232.02                80
 03/15/2021   06:16:01   (  -0.15,-128.37) (  -0.74,-131.00)  299.46                80
 03/16/2021   05:52:41   (  -0.15,-128.38) (   0.40,-126.01)  270.47                80
 03/17/2021   18:11:33   (   0.15,-128.48) (   0.63,-130.57)  238.53                80
 03/18/2021   17:50:53   (   0.14,-128.48) (  -0.50,-125.58)  331.17                80
 03/20/2021   06:12:33   (  -0.15,-128.40) (  -0.51,-130.17)  201.38                80
 03/21/2021   05:49:12   (  -0.14,-128.40) (   0.57,-125.17)  367.70                80