Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 6 11.  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)
 06/12/2023   18:25:29   (   0.02, -75.20) (  -0.11, -75.73)   60.48                80
 06/13/2023   18:09:25   (   0.02, -75.21) (   0.92, -71.20)  456.75                80
 06/15/2023   06:31:12   (  -0.02, -75.22) (   0.25, -76.47)  142.63                80
 06/16/2023   06:12:28   (  -0.02, -75.23) (  -0.79, -71.94)  374.80                80
 06/17/2023   18:31:44   (   0.03, -75.24) (  -0.39, -77.25)  228.06                80
 06/18/2023   18:15:38   (   0.03, -75.26) (   0.59, -72.71)  289.77                80
 06/20/2023   06:34:46   (  -0.03, -75.28) (   0.58, -77.98)  308.61                80
 06/21/2023   06:18:41   (  -0.03, -75.29) (  -0.47, -73.46)  209.63                80
 06/22/2023   18:37:57   (   0.03, -75.32) (  -0.75, -78.76)  392.01                80
 06/23/2023   18:21:52   (   0.03, -75.34) (   0.29, -74.23)  126.81                80