Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 1 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 01/09/2021   14:35:09   (   0.00, -75.20) (   0.32, -76.49)  148.27                80
 01/10/2021   14:17:11   (   0.01, -75.20) (  -0.81, -71.50)  420.70                80
 01/12/2021   02:36:12   (  -0.01, -75.17) (  -0.24, -76.10)  106.36                80
 01/13/2021   02:12:54   (  -0.01, -75.17) (   0.90, -71.11)  462.81                80
 01/14/2021   14:34:26   (   0.01, -75.21) (   0.11, -75.68)   53.04                80
 01/17/2021   02:32:49   (  -0.01, -75.21) (  -0.02, -75.28)    8.67                80
 01/19/2021   14:28:23   (   0.01, -75.27) (  -0.11, -74.86)   47.41                80
 01/21/2021   02:50:04   (  -0.01, -75.27) (  -0.94, -79.46)  476.78                80
 01/22/2021   02:26:46   (  -0.01, -75.29) (   0.20, -74.47)   94.02                80