Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 6 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 07/02/2025   07:46:30   (  -0.02, -94.45) (   0.27, -95.66)  137.61                80
 07/03/2025   07:30:24   (  -0.02, -93.92) (  -0.67, -91.11)  321.06                80
 07/04/2025   19:49:38   (   0.03, -93.13) (  -0.71, -96.38)  370.15                80
 07/05/2025   19:33:33   (   0.03, -92.60) (   0.23, -91.83)   88.52                80
 07/08/2025   07:33:51   (  -0.04, -91.24) (   0.27, -92.50)  143.97                80
 07/09/2025   07:17:45   (  -0.03, -90.71) (  -0.67, -87.95)  314.68                80
 07/10/2025   19:37:00   (   0.04, -89.92) (  -0.70, -93.22)  376.49                80
 07/11/2025   19:20:53   (   0.04, -89.39) (   0.18, -88.66)   82.37                80
 07/14/2025   07:21:12   (  -0.04, -88.03) (   0.25, -89.34)  149.04                80