Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-19
TLE Epoch: 2021 9 30.  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)
 09/30/2021   11:51:11   (   0.03, -75.19) (  -0.96, -70.96)  483.42                80
 10/02/2021   00:26:26   (  -0.05, -75.13) (  -0.90, -78.75)  413.00                80
 10/03/2021   00:14:41   (  -0.04, -75.11) (  -0.23, -75.88)   87.88                80
 10/04/2021   00:00:15   (  -0.04, -75.09) (   0.45, -73.01)  237.38                80
 10/06/2021   12:23:38   (   0.05, -75.05) (   0.73, -77.90)  325.78                80
 10/07/2021   12:09:13   (   0.05, -75.03) (   0.03, -75.04)    1.51                80
 10/08/2021   11:57:26   (   0.05, -75.02) (  -0.61, -72.16)  326.04                80
 10/11/2021   00:20:58   (  -0.07, -74.95) (  -0.57, -77.09)  244.04                80
 10/12/2021   00:06:33   (  -0.07, -74.93) (   0.11, -74.22)   81.93                80
 10/12/2021   23:54:46   (  -0.07, -74.92) (   0.74, -71.34)  407.96                80