Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 12 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)
 12/11/2021   02:46:52   (   0.04, -75.18) (  -0.72, -78.57)  385.57                80
 12/12/2021   02:23:32   (   0.04, -75.19) (   0.41, -73.57)  184.39                80
 12/13/2021   14:45:04   (  -0.03, -75.22) (   0.63, -78.13)  332.01                80
 12/14/2021   14:21:44   (  -0.04, -75.23) (  -0.50, -73.14)  238.41                80
 12/16/2021   02:43:24   (   0.03, -75.24) (  -0.55, -77.73)  284.59                80
 12/17/2021   02:20:04   (   0.03, -75.25) (   0.57, -72.73)  286.03                80
 12/18/2021   14:41:36   (  -0.03, -75.29) (   0.40, -77.31)  229.70                80
 12/19/2021   14:18:16   (  -0.02, -75.30) (  -0.67, -72.30)  341.25                80
 12/21/2021   02:39:56   (   0.02, -75.31) (  -0.32, -76.90)  181.06                80
 12/22/2021   02:16:37   (   0.01, -75.33) (   0.80, -71.91)  390.10                80
 12/23/2021   14:35:28   (  -0.01, -75.37) (   0.22, -76.47)  124.80                80