Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 4 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 04/10/2021   17:00:02   (   0.12,-128.19) (   0.88,-131.70)  399.99                80
 04/11/2021   16:42:02   (   0.12,-128.17) (  -0.19,-126.72)  164.75                80
 04/13/2021   05:01:01   (  -0.12,-128.03) (  -0.88,-131.34)  378.44                80
 04/14/2021   04:37:41   (  -0.12,-128.00) (   0.25,-126.37)  185.85                80
 04/15/2021   16:56:33   (   0.11,-128.06) (   0.74,-130.98)  331.65                80
 04/16/2021   16:38:32   (   0.11,-128.03) (  -0.33,-125.99)  232.29                80
 04/18/2021   04:57:31   (  -0.10,-127.88) (  -0.73,-130.62)  312.10                80
 04/19/2021   04:34:12   (  -0.10,-127.85) (   0.40,-125.65)  251.32                80
 04/20/2021   16:53:03   (   0.10,-127.90) (   0.59,-130.25)  267.57                80
 04/21/2021   16:35:03   (   0.10,-127.86) (  -0.49,-125.27)  295.78                80