Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 1 23.  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)
 01/24/2023   18:32:55   (   0.05, -75.18) (  -0.41, -77.25)  235.41                80
 01/25/2023   18:16:49   (   0.05, -75.19) (   0.60, -72.72)  281.31                80
 01/27/2023   06:38:36   (  -0.05, -75.19) (   0.59, -77.98)  319.02                80
 01/28/2023   06:17:10   (  -0.04, -75.19) (  -0.42, -73.45)  198.13                80
 01/29/2023   18:39:05   (   0.04, -75.21) (  -0.76, -78.76)  404.74                80
 01/30/2023   18:23:00   (   0.04, -75.21) (   0.26, -74.23)  112.78                80
 02/01/2023   06:44:46   (  -0.03, -75.23) (   0.92, -79.49)  486.39                80
 02/02/2023   06:23:21   (  -0.03, -75.23) (  -0.10, -74.96)   31.37                80
 02/04/2023   18:26:30   (  -0.01, -75.27) (  -0.09, -75.73)   51.83                80
 02/05/2023   18:07:43   (  -0.01, -75.28) (   0.88, -71.18)  466.53                80