Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 10 20.  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)
 10/21/2025   19:05:03   (   0.22, -89.53) (   1.14, -85.48)  462.53                80
 10/23/2025   07:29:27   (  -0.19, -89.51) (   0.08, -90.72)  137.67                80
 10/24/2025   07:08:00   (  -0.20, -89.52) (  -0.92, -86.18)  379.44                80
 10/25/2025   19:32:35   (   0.17, -89.55) (  -0.26, -91.48)  219.84                80
 10/26/2025   19:11:08   (   0.19, -89.56) (   0.75, -86.94)  297.81                80
 10/28/2025   07:35:33   (  -0.16, -89.55) (   0.45, -92.19)  301.34                80
 10/29/2025   07:14:07   (  -0.18, -89.55) (  -0.62, -87.66)  215.93                80
 10/30/2025   19:38:40   (   0.15, -89.58) (  -0.61, -92.94)  383.44                80
 10/31/2025   19:17:15   (   0.17, -89.59) (   0.47, -88.42)  134.71                80
 11/02/2025   07:41:38   (  -0.14, -89.60) (   0.78, -93.66)  462.64                80
 11/03/2025   07:20:12   (  -0.16, -89.61) (  -0.24, -89.12)   55.22                80