Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-C
TLE Epoch: 2021 9 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 09/18/2021   02:35:21   (  -0.08, -75.19) (   0.00, -76.12)  103.69                 0
 09/19/2021   02:13:17   (  -0.07, -75.19) (   0.86, -71.07)  469.94                80
 09/20/2021   14:34:46   (   0.08, -75.21) (   0.17, -75.62)   46.97                80
 09/23/2021   02:33:06   (  -0.08, -75.21) (  -0.09, -75.23)    1.95                80
 09/25/2021   14:28:35   (   0.09, -75.24) (   0.02, -74.78)   52.17                80
 09/27/2021   02:50:15   (  -0.10, -75.24) (  -1.02, -79.38)  471.64                80
 09/28/2021   02:26:55   (  -0.10, -75.25) (   0.07, -74.38)   98.57                80
 09/29/2021   14:48:24   (   0.11, -75.28) (   0.95, -78.94)  417.04                80
 09/30/2021   14:25:04   (   0.11, -75.29) (  -0.20, -73.95)  153.50                80