Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 2 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)
 02/25/2023   18:32:42   (   0.07, -75.19) (  -0.37, -77.29)  238.95                80
 02/26/2023   18:16:37   (   0.07, -75.19) (   0.59, -72.75)  277.77                80
 02/28/2023   06:38:25   (  -0.06, -75.20) (   0.54, -78.03)  321.96                80
 03/01/2023   06:17:00   (  -0.06, -75.21) (  -0.42, -73.49)  194.94                80
 03/02/2023   18:38:56   (   0.05, -75.22) (  -0.76, -78.80)  408.98                80
 03/03/2023   18:22:52   (   0.05, -75.23) (   0.28, -74.28)  108.42                80
 03/05/2023   06:44:39   (  -0.04, -75.25) (   0.91, -79.55)  489.81                80
 03/06/2023   06:23:14   (  -0.04, -75.26) (  -0.12, -75.02)   28.08                80
 03/08/2023   18:29:05   (   0.04, -75.30) (  -0.06, -75.80)   56.48                80
 03/09/2023   18:07:40   (   0.04, -75.32) (   0.93, -71.26)  461.89                80