Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2024 12 30.  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)
 12/31/2024   06:39:56   (   0.01, -75.18) (   0.69, -78.13)  336.28                80
 01/01/2025   06:18:29   (   0.01, -75.18) (  -0.32, -73.59)  180.83                80
 01/02/2025   18:40:23   (  -0.02, -75.20) (  -0.84, -78.89)  420.69                80
 01/03/2025   18:24:16   (   0.02, -75.20) (   0.18, -74.35)   95.98                80
 01/06/2025   06:24:35   (  -0.02, -75.20) (  -0.05, -75.08)   13.63                80
 01/08/2025   18:27:40   (  -0.00, -75.23) (  -0.16, -75.82)   68.22                80
 01/09/2025   18:11:33   (  -0.01, -75.24) (   0.88, -71.29)  450.42                80
 01/11/2025   06:33:18   (   0.01, -75.25) (   0.32, -76.55)  148.70                80
 01/12/2025   06:11:51   (   0.01, -75.25) (  -0.73, -72.01)  369.63                80
 01/13/2025   18:33:44   (  -0.01, -75.28) (  -0.44, -77.31)  230.20                80