Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 4 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)
 04/08/2021   06:19:14   (  -0.11,-128.14) (  -0.92,-131.81)  417.09                80
 04/09/2021   05:55:54   (  -0.12,-128.12) (   0.16,-126.80)  149.84                80
 04/10/2021   18:14:45   (   0.11,-128.18) (   0.85,-131.37)  363.35                80
 04/11/2021   17:56:46   (   0.11,-128.16) (  -0.30,-126.38)  203.77                80
 04/13/2021   06:15:44   (  -0.11,-128.03) (  -0.78,-130.96)  333.73                80
 04/14/2021   05:52:24   (  -0.11,-128.01) (   0.36,-125.97)  232.67                80
 04/15/2021   18:11:16   (   0.10,-128.06) (   0.63,-130.53)  281.86                80
 04/16/2021   17:53:15   (   0.10,-128.03) (  -0.45,-125.53)  284.44                80
 04/18/2021   06:12:15   (  -0.09,-127.89) (  -0.57,-130.13)  254.07                80
 04/19/2021   05:48:54   (  -0.09,-127.86) (   0.52,-125.13)  311.43                80
 04/20/2021   18:07:45   (   0.09,-127.89) (   0.47,-129.69)  204.67                80
 04/21/2021   17:49:45   (   0.09,-127.86) (  -0.61,-124.69)  361.00                80