Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 3 19.  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)
 03/21/2023   06:44:28   (  -0.06, -75.22) (   0.90, -79.54)  491.90                80
 03/22/2023   06:23:03   (  -0.06, -75.23) (  -0.12, -75.01)   25.85                80
 03/24/2023   18:28:51   (   0.06, -75.27) (  -0.08, -75.77)   57.54                80
 03/25/2023   18:07:26   (   0.06, -75.29) (   0.95, -71.24)  460.84                80
 03/27/2023   06:31:52   (  -0.05, -75.31) (   0.22, -76.51)  136.99                80
 03/28/2023   06:10:27   (  -0.05, -75.32) (  -0.81, -71.98)  381.53                80
 03/29/2023   18:35:01   (   0.05, -75.36) (  -0.39, -77.28)  218.88                80
 03/30/2023   18:13:36   (   0.04, -75.38) (   0.65, -72.75)  300.18                80
 04/01/2023   06:38:01   (  -0.03, -75.41) (   0.57, -78.00)  296.29                80
 04/02/2023   06:16:35   (  -0.03, -75.43) (  -0.47, -73.47)  223.12                80