Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 3 20.  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)
 03/21/2025   06:39:03   (  -0.07, -75.43) (   0.49, -78.06)  298.70                80
 03/22/2025   06:17:38   (  -0.07, -75.45) (  -0.51, -73.52)  219.80                80
 03/23/2025   18:39:33   (   0.06, -75.47) (  -0.70, -78.82)  381.36                80
 03/24/2025   18:23:28   (   0.06, -75.50) (   0.31, -74.28)  137.87                80
 03/26/2025   06:45:14   (  -0.05, -75.54) (   0.85, -79.55)  457.36                80
 03/27/2025   06:23:48   (  -0.05, -75.56) (  -0.16, -75.02)   61.91                80
 03/29/2025   18:26:58   (   0.05, -75.63) (   0.00, -75.79)   18.55                80
 04/01/2025   06:32:39   (  -0.05, -75.71) (   0.11, -76.52)   92.60                80
 04/02/2025   06:11:14   (  -0.05, -75.74) (  -0.92, -71.99)  427.22                80
 04/03/2025   18:33:08   (   0.05, -75.77) (  -0.28, -77.29)  172.45                80