Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 3 13.  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)
 03/13/2021   17:54:22   (   0.15,-128.44) (  -0.31,-126.41)  231.14                80
 03/15/2021   06:16:00   (  -0.15,-128.36) (  -0.76,-130.99)  300.63                80
 03/16/2021   05:52:41   (  -0.15,-128.36) (   0.37,-126.00)  269.05                80
 03/17/2021   18:11:33   (   0.15,-128.46) (   0.60,-130.57)  240.50                80
 03/18/2021   17:50:53   (   0.15,-128.46) (  -0.48,-125.57)  328.96                80
 03/20/2021   06:12:32   (  -0.15,-128.37) (  -0.53,-130.17)  203.89                80
 03/21/2021   05:49:12   (  -0.14,-128.37) (   0.54,-125.16)  364.93                80
 03/22/2021   18:08:04   (   0.14,-128.45) (   0.43,-129.73)  146.16                80
 03/23/2021   17:50:04   (   0.14,-128.45) (  -0.71,-124.74)  422.50                80
 03/25/2021   06:09:03   (  -0.14,-128.35) (  -0.36,-129.33)  111.24                80
 03/26/2021   05:45:43   (  -0.14,-128.34) (   0.78,-124.34)  457.01                80