Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 3 7.  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)
 03/08/2023   18:26:25   (   0.07, -75.19) (  -0.05, -75.79)   68.97                80
 03/09/2023   18:10:19   (   0.07, -75.19) (   0.94, -71.26)  447.62                80
 03/11/2023   06:32:07   (  -0.07, -75.20) (   0.22, -76.53)  152.10                80
 03/12/2023   06:10:41   (  -0.07, -75.20) (  -0.78, -72.00)  364.52                80
 03/13/2023   18:32:36   (   0.06, -75.19) (  -0.41, -77.30)  240.07                80
 03/14/2023   18:16:31   (   0.06, -75.20) (   0.60, -72.77)  276.74                80
 03/16/2023   06:38:17   (  -0.05, -75.21) (   0.60, -78.03)  322.50                80
 03/17/2023   06:16:52   (  -0.05, -75.21) (  -0.41, -73.50)  194.47                80
 03/18/2023   18:41:27   (   0.04, -75.21) (  -0.76, -78.80)  409.39                80
 03/19/2023   18:20:02   (   0.04, -75.22) (   0.26, -74.27)  108.23                80