Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 5 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 05/15/2021   06:51:47   (  -0.05,-137.19) (  -0.81,-140.61)  389.00                80
 05/16/2021   06:31:09   (  -0.05,-137.19) (   0.31,-135.62)  179.65                80
 05/17/2021   18:50:01   (   0.04,-137.19) (   0.73,-140.17)  340.61                80
 05/18/2021   18:32:03   (   0.04,-137.19) (  -0.39,-135.18)  227.76                80
 05/20/2021   06:48:25   (  -0.03,-137.17) (  -0.63,-139.78)  297.76                80
 05/21/2021   06:30:27   (  -0.03,-137.17) (   0.49,-134.79)  270.31                80
 05/22/2021   18:46:39   (   0.03,-137.15) (   0.54,-139.35)  250.87                80
 05/23/2021   18:28:40   (   0.03,-137.14) (  -0.57,-134.36)  316.86                80
 05/25/2021   06:45:03   (  -0.03,-137.12) (  -0.44,-138.96)  209.82                80
 05/26/2021   06:27:04   (  -0.03,-137.10) (   0.68,-133.97)  357.24                80
 05/27/2021   18:43:17   (   0.02,-137.08) (   0.35,-138.53)  165.72                80
 05/28/2021   18:25:18   (   0.01,-137.06) (  -0.77,-133.54)  400.83                80