Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 7 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)
 08/01/2025   19:24:35   (   0.11, -89.51) (  -0.03, -90.21)   79.40                80
 08/02/2025   19:08:30   (   0.11, -89.51) (   0.99, -85.69)  437.06                80
 08/04/2025   07:27:38   (  -0.12, -89.48) (   0.21, -90.95)  167.54                80
 08/05/2025   07:11:33   (  -0.12, -89.48) (  -0.81, -86.42)  348.87                80
 08/06/2025   19:30:49   (   0.13, -89.52) (  -0.39, -91.72)  252.08                80
 08/07/2025   19:14:45   (   0.13, -89.52) (   0.63, -87.19)  264.58                80
 08/09/2025   07:33:53   (  -0.14, -89.49) (   0.51, -92.47)  339.54                80
 08/10/2025   07:17:49   (  -0.14, -89.49) (  -0.51, -87.94)  177.40                80
 08/11/2025   19:37:05   (   0.15, -89.54) (  -0.67, -93.25)  422.61                80
 08/12/2025   19:21:01   (   0.14, -89.54) (   0.36, -88.72)   94.70                80