Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 2 9.  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)
 02/10/2023   18:16:35   (   0.05, -75.19) (   0.62, -72.70)  283.81                80
 02/12/2023   06:38:21   (  -0.05, -75.20) (   0.54, -77.98)  315.93                80
 02/13/2023   06:16:55   (  -0.05, -75.20) (  -0.44, -73.43)  201.29                80
 02/14/2023   18:38:49   (   0.05, -75.21) (  -0.75, -78.73)  401.78                80
 02/15/2023   18:22:43   (   0.04, -75.21) (   0.29, -74.20)  115.63                80
 02/17/2023   06:44:29   (  -0.03, -75.22) (   0.90, -79.46)  483.57                80
 02/18/2023   06:23:02   (  -0.03, -75.23) (  -0.08, -74.92)   34.03                80
 02/20/2023   18:26:10   (   0.01, -75.25) (  -0.09, -75.69)   49.87                80
 02/21/2023   18:10:04   (   0.02, -75.27) (   0.91, -71.15)  468.55                80
 02/23/2023   06:31:50   (  -0.02, -75.29) (   0.21, -76.43)  128.67                80