Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-C
TLE Epoch: 2021 5 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 05/11/2021   18:30:16   (   0.05,-137.20) (  -0.60,-134.38)  321.99                80
 05/13/2021   06:46:37   (  -0.04,-137.18) (  -0.46,-138.97)  204.16                80
 05/14/2021   06:28:37   (  -0.04,-137.17) (   0.65,-133.97)  363.99                80
 05/15/2021   18:44:49   (   0.03,-137.17) (   0.32,-138.54)  156.53                80
 05/16/2021   18:26:49   (   0.03,-137.15) (  -0.79,-133.55)  411.14                80
 05/18/2021   06:43:09   (  -0.02,-137.12) (  -0.28,-138.14)  116.47                80
 05/19/2021   06:25:10   (  -0.02,-137.11) (   0.84,-133.15)  450.89                80
 05/20/2021   18:41:21   (   0.02,-137.09) (   0.13,-137.72)   70.69                80
 05/21/2021   18:23:22   (   0.02,-137.07) (  -0.99,-132.72)  496.44                80
 05/23/2021   06:39:42   (  -0.01,-137.03) (  -0.08,-137.31)   31.99                80