Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 4 3.  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)
 04/04/2025   18:17:00   (   0.06, -75.48) (   0.66, -72.73)  312.90                80
 04/06/2025   06:38:46   (  -0.05, -75.49) (   0.53, -77.99)  285.29                80
 04/07/2025   06:17:20   (  -0.05, -75.49) (  -0.51, -73.46)  231.78                80
 04/08/2025   18:39:15   (   0.04, -75.49) (  -0.67, -78.76)  372.42                80
 04/09/2025   18:23:08   (   0.04, -75.49) (   0.32, -74.22)  145.47                80
 04/11/2025   06:44:53   (  -0.04, -75.52) (   0.87, -79.48)  450.74                80
 04/12/2025   06:23:28   (  -0.04, -75.53) (  -0.19, -74.95)   67.31                80
 04/14/2025   18:26:36   (   0.04, -75.55) (   0.03, -75.71)   17.71                80
 04/17/2025   06:32:15   (  -0.03, -75.60) (   0.15, -76.43)   94.27                80