Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 5 22.  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)
 05/22/2021   18:46:38   (   0.05,-137.20) (   0.52,-139.35)  245.24                80
 05/23/2021   18:28:40   (   0.05,-137.19) (  -0.61,-134.36)  323.31                80
 05/25/2021   06:45:01   (  -0.04,-137.17) (  -0.44,-138.95)  202.88                80
 05/26/2021   06:27:03   (  -0.04,-137.16) (   0.69,-133.96)  364.99                80
 05/27/2021   18:43:15   (   0.03,-137.15) (   0.31,-138.53)  156.10                80
 05/28/2021   18:25:16   (   0.03,-137.14) (  -0.76,-133.52)  411.31                80
 05/30/2021   06:44:18   (  -0.02,-137.11) (  -0.23,-138.13)  116.29                80
 05/31/2021   06:20:58   (  -0.02,-137.09) (   0.85,-133.13)  450.91                80
 06/01/2021   18:39:51   (   0.02,-137.07) (   0.16,-137.69)   70.80                80
 06/02/2021   18:21:52   (   0.02,-137.05) (  -0.98,-132.70)  496.37                80
 06/04/2021   06:40:54   (  -0.01,-137.02) (  -0.06,-137.30)   31.29                80