Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 3 11.  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)
 03/11/2021   05:56:10   (  -0.15,-128.33) (   0.21,-126.85)  169.67                80
 03/12/2021   18:17:42   (   0.15,-128.43) (   0.82,-131.40)  338.82                80
 03/13/2021   17:54:22   (   0.15,-128.44) (  -0.32,-126.41)  231.31                80
 03/15/2021   06:16:01   (  -0.15,-128.36) (  -0.76,-130.99)  300.38                80
 03/16/2021   05:52:41   (  -0.15,-128.37) (   0.37,-126.00)  269.40                80
 03/17/2021   18:11:33   (   0.15,-128.46) (   0.60,-130.58)  239.91                80
 03/18/2021   17:50:53   (   0.15,-128.47) (  -0.48,-125.57)  329.64                80
 03/20/2021   06:12:32   (  -0.15,-128.38) (  -0.53,-130.17)  203.12                80
 03/21/2021   05:49:13   (  -0.14,-128.38) (   0.60,-125.18)  365.79                80
 03/22/2021   18:08:04   (   0.14,-128.46) (   0.43,-129.73)  145.07                80
 03/23/2021   17:50:05   (   0.14,-128.46) (  -0.71,-124.74)  423.68                80