Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 4 7.  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)
 04/08/2021   06:19:14   (  -0.11,-128.14) (  -0.91,-131.81)  417.08                80
 04/09/2021   05:55:54   (  -0.12,-128.12) (   0.17,-126.81)  149.89                80
 04/10/2021   18:14:45   (   0.11,-128.19) (   0.84,-131.37)  363.14                80
 04/11/2021   17:56:46   (   0.11,-128.17) (  -0.31,-126.38)  204.05                80
 04/13/2021   06:15:44   (  -0.11,-128.04) (  -0.77,-130.96)  333.40                80
 04/14/2021   05:52:24   (  -0.11,-128.01) (   0.32,-125.96)  233.06                80
 04/15/2021   18:11:16   (   0.10,-128.06) (   0.62,-130.54)  281.36                80
 04/16/2021   17:53:15   (   0.10,-128.03) (  -0.46,-125.54)  285.02                80
 04/18/2021   06:12:14   (  -0.09,-127.90) (  -0.61,-130.12)  253.45                80
 04/19/2021   05:48:54   (  -0.09,-127.86) (   0.53,-125.13)  312.12                80
 04/20/2021   18:07:46   (   0.09,-127.90) (   0.46,-129.69)  203.86                80