Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 1 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)
 01/13/2025   18:33:42   (   0.01, -75.18) (  -0.47, -77.30)  241.61                80
 01/14/2025   18:17:35   (   0.01, -75.18) (   0.52, -72.75)  276.01                80
 01/16/2025   06:39:20   (  -0.01, -75.18) (   0.60, -78.02)  322.92                80
 01/17/2025   06:17:53   (  -0.02, -75.19) (  -0.40, -73.48)  195.08                80
 01/18/2025   18:39:45   (   0.02, -75.20) (  -0.77, -78.77)  406.12                80
 01/19/2025   18:23:38   (   0.02, -75.22) (   0.23, -74.23)  112.67                80
 01/21/2025   06:45:22   (  -0.02, -75.24) (   0.94, -79.49)  484.27                80
 01/22/2025   06:23:54   (  -0.02, -75.25) (  -0.06, -74.94)   34.59                80
 01/24/2025   18:26:59   (   0.03, -75.28) (  -0.09, -75.69)   47.54                80
 01/25/2025   18:10:53   (   0.03, -75.30) (   0.98, -71.16)  471.71                80