Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 3 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 03/25/2023   18:07:26   (   0.07, -75.19) (   0.95, -71.24)  450.68                80
 03/27/2023   06:31:52   (  -0.06, -75.20) (   0.20, -76.51)  148.57                80
 03/28/2023   06:10:26   (  -0.06, -75.20) (  -0.77, -71.97)  368.52                80
 03/29/2023   18:35:00   (   0.05, -75.21) (  -0.42, -77.27)  235.01                80
 03/30/2023   18:13:34   (   0.05, -75.21) (   0.63, -72.74)  282.58                80
 04/01/2023   06:38:00   (  -0.04, -75.23) (   0.57, -78.00)  315.24                80
 04/02/2023   06:16:33   (  -0.04, -75.24) (  -0.42, -73.46)  202.75                80
 04/03/2023   18:41:08   (   0.03, -75.25) (  -0.75, -78.76)  399.41                80
 04/04/2023   18:19:41   (   0.03, -75.27) (   0.25, -74.22)  119.09                80
 04/06/2023   06:44:06   (  -0.03, -75.30) (   0.94, -79.48)  477.41                80
 04/07/2023   06:22:41   (  -0.03, -75.31) (  -0.12, -74.96)   41.24                80