Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 3 28.  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)
 03/29/2023   18:35:00   (   0.06, -75.19) (  -0.39, -77.27)  237.13                80
 03/30/2023   18:13:34   (   0.06, -75.19) (   0.59, -72.73)  279.93                80
 04/01/2023   06:38:00   (  -0.05, -75.20) (   0.56, -78.00)  318.43                80
 04/02/2023   06:16:34   (  -0.05, -75.21) (  -0.43, -73.46)  199.03                80
 04/03/2023   18:41:08   (   0.04, -75.21) (  -0.74, -78.76)  404.20                80
 04/04/2023   18:19:42   (   0.04, -75.22) (   0.25, -74.22)  113.75                80
 04/06/2023   06:44:08   (  -0.04, -75.25) (   0.88, -79.49)  483.28                80
 04/07/2023   06:22:41   (  -0.04, -75.26) (  -0.12, -74.96)   34.80                80
 04/09/2023   18:28:29   (   0.04, -75.28) (  -0.04, -75.72)   49.58                80
 04/10/2023   18:07:03   (   0.04, -75.29) (   0.97, -71.18)  468.72                80