Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 4 15.  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)
 04/16/2025   06:51:10   (  -0.05, -78.14) (   0.62, -81.08)  335.37                80
 04/17/2025   06:29:45   (  -0.06, -78.64) (  -0.50, -76.57)  235.09                80
 04/18/2025   18:54:22   (   0.05, -79.41) (  -0.52, -81.90)  284.08                80
 04/19/2025   18:32:57   (   0.05, -79.90) (   0.61, -77.39)  286.76                80
 04/21/2025   06:57:25   (  -0.04, -80.65) (   0.44, -82.67)  231.11                80
 04/22/2025   06:36:00   (  -0.04, -81.15) (  -0.69, -78.16)  339.96                80
 04/23/2025   19:00:36   (   0.03, -81.93) (  -0.31, -83.50)  178.22                80
 04/24/2025   18:39:12   (   0.03, -82.43) (   0.83, -78.99)  393.34                80
 04/26/2025   07:03:39   (  -0.03, -83.19) (   0.22, -84.27)  123.54                80
 04/27/2025   06:42:15   (  -0.03, -83.69) (  -0.92, -79.76)  447.96                80
 04/28/2025   19:06:50   (   0.03, -84.47) (  -0.11, -85.09)   69.79                80