Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2026 9 29.  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)
 09/30/2026   07:15:34   (  -0.99, -89.49) (  -1.31, -88.14)  154.86                80
 10/01/2026   19:40:09   (   0.90, -89.51) (   0.05, -93.43)  445.59                80
 10/02/2026   19:18:44   (   0.96, -89.52) (   1.07, -88.90)   69.76                80
 10/05/2026   07:24:27   (  -0.91, -89.52) (  -0.88, -89.64)   13.77                80
 10/07/2026   19:27:38   (   0.87, -89.55) (   0.71, -90.41)   97.26                80
 10/08/2026   19:06:13   (   0.93, -89.56) (   1.74, -85.88)  418.97                80
 10/10/2026   07:30:40   (  -0.82, -89.58) (  -0.46, -91.13)  177.85                80
 10/11/2026   07:09:16   (  -0.89, -89.59) (  -1.55, -86.62)  338.27                80
 10/12/2026   19:33:49   (   0.77, -89.62) (   0.23, -91.90)  260.08                80