Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-19
TLE Epoch: 2021 12 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/19/2021   00:11:50   (   0.05, -75.19) (   0.71, -72.40)  317.95                80
 12/21/2021   12:32:33   (  -0.04, -75.20) (   0.45, -77.30)  240.47                80
 12/22/2021   12:18:07   (  -0.04, -75.19) (  -0.24, -74.43)   87.64                80
 12/23/2021   12:06:19   (  -0.04, -75.19) (  -0.86, -71.55)  415.84                80
 12/25/2021   00:41:31   (   0.03, -75.17) (  -0.95, -79.33)  475.42                80
 12/26/2021   00:29:45   (   0.03, -75.18) (  -0.25, -76.47)  146.72                80
 12/27/2021   00:15:17   (   0.03, -75.18) (   0.39, -73.58)  182.14                80
 12/29/2021   12:36:52   (  -0.03, -75.22) (   0.72, -78.50)  374.46                30
 12/30/2021   12:24:15   (  -0.02, -75.22) (   0.09, -75.61)   45.52                80
 12/31/2021   12:15:08   (  -0.02, -75.23) (  -0.61, -72.75)  283.59                80