Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 3 24.  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)
 03/24/2023   18:28:52   (   0.06, -75.19) (  -0.04, -75.78)   65.99                80
 03/25/2023   18:07:25   (   0.07, -75.20) (   0.94, -71.24)  451.07                80
 03/27/2023   06:31:50   (  -0.06, -75.20) (   0.25, -76.50)  147.94                80
 03/28/2023   06:10:25   (  -0.06, -75.21) (  -0.81, -71.97)  369.38                80
 03/29/2023   18:34:58   (   0.05, -75.21) (  -0.40, -77.26)  233.65                80
 03/30/2023   18:13:32   (   0.05, -75.22) (   0.61, -72.72)  284.22                80
 04/01/2023   06:37:57   (  -0.04, -75.24) (   0.55, -77.99)  313.23                80
 04/02/2023   06:16:30   (  -0.04, -75.25) (  -0.42, -73.44)  205.13                80
 04/03/2023   18:41:03   (   0.03, -75.26) (  -0.75, -78.74)  396.35                80
 04/04/2023   18:19:37   (   0.03, -75.28) (   0.29, -74.21)  122.53                80
 04/06/2023   06:44:01   (  -0.03, -75.31) (   0.89, -79.46)  473.40                80