Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 1 17.  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)
 01/18/2025   18:39:45   (   0.02, -75.19) (  -0.78, -78.77)  407.86                80
 01/19/2025   18:23:37   (   0.02, -75.21) (   0.22, -74.22)  111.64                80
 01/21/2025   06:45:22   (  -0.02, -75.23) (   0.94, -79.48)  484.94                80
 01/22/2025   06:23:54   (  -0.02, -75.25) (  -0.07, -74.94)   34.55                80
 01/24/2025   18:26:59   (   0.03, -75.30) (  -0.07, -75.69)   44.86                80
 01/25/2025   18:10:52   (   0.03, -75.33) (   0.94, -71.15)  475.05                80
 01/27/2025   06:32:36   (  -0.04, -75.36) (   0.20, -76.42)  120.80                80
 01/28/2025   06:11:08   (  -0.04, -75.38) (  -0.82, -71.87)  399.01                80
 01/29/2025   18:33:01   (   0.05, -75.42) (  -0.32, -77.17)  199.54                80
 01/30/2025   18:16:53   (   0.05, -75.44) (   0.70, -72.63)  321.11                80