Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 12 3.  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)
 12/04/2025   07:42:26   (   0.10, -89.51) (   1.08, -93.76)  484.85                80
 12/05/2025   07:21:05   (   0.07, -89.50) (  -0.02, -89.25)   29.81                80
 12/07/2025   19:27:00   (  -0.10, -89.49) (  -0.23, -90.02)   60.48                80
 12/08/2025   19:05:37   (  -0.06, -89.50) (   0.82, -85.50)  455.10                80
 12/10/2025   07:30:06   (   0.12, -89.52) (   0.40, -90.77)  142.79                80
 12/11/2025   07:08:44   (   0.09, -89.52) (  -0.65, -86.25)  372.67                80
 12/12/2025   19:33:21   (  -0.14, -89.52) (  -0.61, -91.54)  231.34                80
 12/13/2025   19:11:59   (  -0.11, -89.53) (   0.44, -87.03)  285.18                80
 12/15/2025   07:36:28   (   0.17, -89.57) (   0.77, -92.29)  310.71                80
 12/16/2025   07:15:05   (   0.14, -89.57) (  -0.23, -87.77)  205.33                80
 12/17/2025   19:39:42   (  -0.20, -89.57) (  -1.01, -93.06)  399.01                80