Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 9 11.  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)
 09/12/2021   14:48:31   (   0.08, -75.19) (   0.94, -78.93)  426.95                80
 09/13/2021   14:25:12   (   0.07, -75.18) (  -0.23, -73.94)  141.04                80
 09/15/2021   02:46:53   (  -0.09, -75.15) (  -0.82, -78.54)  385.09                80
 09/16/2021   02:23:33   (  -0.08, -75.14) (   0.29, -73.54)  183.00                80
 09/17/2021   14:45:04   (   0.10, -75.14) (   0.78, -78.08)  335.94                80
 09/18/2021   14:21:45   (   0.09, -75.14) (  -0.39, -73.10)  232.80                80
 09/20/2021   02:43:25   (  -0.10, -75.13) (  -0.66, -77.69)  291.68                80
 09/21/2021   02:20:06   (  -0.09, -75.13) (   0.45, -72.70)  277.51                80
 09/22/2021   14:41:37   (   0.10, -75.15) (   0.56, -77.26)  239.80                80
 09/23/2021   14:18:18   (   0.09, -75.16) (  -0.55, -72.26)  329.94                80