Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 3 8.  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)
 03/09/2023   18:10:19   (   0.07, -75.19) (   0.93, -71.26)  448.40                80
 03/11/2023   06:32:06   (  -0.07, -75.20) (   0.22, -76.53)  151.43                80
 03/12/2023   06:10:41   (  -0.07, -75.20) (  -0.79, -72.00)  365.41                80
 03/13/2023   18:32:36   (   0.06, -75.21) (  -0.39, -77.30)  238.42                80
 03/14/2023   18:16:31   (   0.06, -75.21) (   0.62, -72.77)  278.63                80
 03/16/2023   06:38:17   (  -0.06, -75.22) (   0.56, -78.04)  320.65                80
 03/17/2023   06:16:52   (  -0.05, -75.22) (  -0.47, -73.51)  196.59                80
 03/18/2023   18:41:26   (   0.04, -75.23) (  -0.74, -78.80)  406.45                80
 03/19/2023   18:22:39   (   0.04, -75.24) (   0.24, -74.26)  111.49                80
 03/21/2023   06:44:26   (  -0.04, -75.27) (   0.92, -79.53)  485.98                80
 03/22/2023   06:23:00   (  -0.04, -75.28) (  -0.12, -75.00)   32.41                80