Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 4 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)
 04/13/2025   18:48:03   (   0.05, -76.15) (  -0.89, -80.26)  468.83                80
 04/14/2025   18:26:38   (   0.05, -76.33) (   0.17, -75.74)   67.10                80
 04/17/2025   06:29:39   (  -0.05, -76.78) (  -0.11, -76.48)   33.19                80
 04/19/2025   18:35:28   (   0.04, -77.21) (   0.05, -77.26)    5.61                80
 04/22/2025   06:38:27   (  -0.03, -77.67) (   0.05, -78.00)   37.26                80
 04/23/2025   06:17:02   (  -0.03, -77.85) (  -1.03, -73.47)  499.41                80
 04/24/2025   18:41:35   (   0.02, -78.13) (  -0.13, -78.77)   73.73                80
 04/25/2025   18:20:10   (   0.03, -78.31) (   0.96, -74.25)  463.47                80