Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 6 12.  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   18:25:30   (   0.02, -75.19) (  -0.09, -75.73)   61.33                80
 06/13/2023   18:09:24   (   0.02, -75.19) (   0.89, -71.19)  455.45                80
 06/15/2023   06:28:32   (  -0.02, -75.20) (   0.29, -76.46)  144.59                80
 06/16/2023   06:12:27   (  -0.02, -75.20) (  -0.75, -71.94)  372.41                80
 06/17/2023   18:31:43   (   0.03, -75.21) (  -0.42, -77.24)  231.19                80
 06/18/2023   18:15:39   (   0.03, -75.22) (   0.62, -72.72)  286.16                80
 06/20/2023   06:34:45   (  -0.03, -75.24) (   0.61, -77.98)  312.89                80
 06/21/2023   06:18:41   (  -0.03, -75.25) (  -0.43, -73.45)  204.89                80
 06/22/2023   18:37:57   (   0.03, -75.27) (  -0.73, -78.76)  397.47                80
 06/23/2023   18:21:52   (   0.03, -75.29) (   0.26, -74.22)  120.86                80
 06/25/2023   06:40:59   (  -0.03, -75.31) (   0.91, -79.50)  476.67                80