Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 3 12.  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)
 03/12/2021   18:17:42   (   0.15,-128.43) (   0.82,-131.40)  338.89                80
 03/13/2021   17:54:22   (   0.15,-128.44) (  -0.31,-126.41)  231.19                80
 03/15/2021   06:16:00   (  -0.15,-128.36) (  -0.77,-130.99)  300.55                80
 03/16/2021   05:52:41   (  -0.15,-128.37) (   0.37,-126.00)  269.18                80
 03/17/2021   18:11:33   (   0.15,-128.46) (   0.60,-130.57)  240.25                80
 03/18/2021   17:50:53   (   0.15,-128.46) (  -0.47,-125.57)  329.24                80
 03/20/2021   06:12:32   (  -0.15,-128.38) (  -0.54,-130.16)  203.57                80
 03/21/2021   05:49:13   (  -0.14,-128.37) (   0.60,-125.17)  365.29                80
 03/22/2021   18:08:04   (   0.14,-128.46) (   0.43,-129.73)  145.69                80
 03/23/2021   17:50:04   (   0.14,-128.45) (  -0.70,-124.74)  423.01                80
 03/25/2021   06:09:03   (  -0.14,-128.36) (  -0.36,-129.33)  110.70                80