Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 9 27.  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)
 09/28/2025   19:39:26   (   0.23, -89.51) (  -0.58, -93.16)  416.24                80
 09/29/2025   19:20:41   (   0.24, -89.51) (   0.43, -88.63)  100.39                80
 10/02/2025   07:21:01   (  -0.24, -89.48) (  -0.26, -89.36)   14.22                80
 10/04/2025   19:26:50   (   0.24, -89.51) (   0.09, -90.12)   68.94                80
 10/05/2025   19:05:25   (   0.25, -89.52) (   1.12, -85.58)  448.39                80
 10/07/2025   07:29:51   (  -0.23, -89.50) (   0.05, -90.85)  152.84                80
 10/08/2025   07:08:26   (  -0.24, -89.50) (  -0.98, -86.31)  364.17                80
 10/09/2025   19:32:59   (   0.22, -89.53) (  -0.27, -91.60)  235.92                80
 10/10/2025   19:11:33   (   0.23, -89.54) (   0.77, -87.06)  281.35                80