Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 12 20.  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)
 12/21/2021   02:39:56   (   0.04, -75.17) (  -0.34, -76.90)  196.47                80
 12/22/2021   02:16:36   (   0.04, -75.17) (   0.79, -71.91)  372.31                80
 12/23/2021   14:38:08   (  -0.03, -75.19) (   0.23, -76.47)  145.16                80
 12/24/2021   14:14:47   (  -0.03, -75.19) (  -0.85, -71.46)  424.15                80
 12/26/2021   02:36:26   (   0.03, -75.17) (  -0.20, -76.05)  101.30                80
 12/27/2021   02:13:07   (   0.03, -75.17) (   0.93, -71.06)  468.26                80
 12/28/2021   14:34:38   (  -0.02, -75.20) (   0.07, -75.63)   48.24                80
 12/31/2021   02:32:58   (   0.02, -75.19) (   0.02, -75.22)    3.41                80
 01/02/2022   14:31:09   (  -0.02, -75.23) (  -0.11, -74.79)   50.07                80