Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 10 18.  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)
 10/20/2025   19:26:28   (   0.20, -89.52) (   0.09, -90.01)   55.08                80
 10/21/2025   19:05:03   (   0.22, -89.53) (   1.15, -85.48)  462.58                80
 10/23/2025   07:29:27   (  -0.19, -89.52) (   0.07, -90.73)  137.61                80
 10/24/2025   07:08:01   (  -0.20, -89.52) (  -0.93, -86.19)  379.54                80
 10/25/2025   19:32:35   (   0.17, -89.55) (  -0.25, -91.48)  219.63                80
 10/26/2025   19:11:08   (   0.19, -89.56) (   0.76, -86.94)  298.06                80
 10/28/2025   07:35:33   (  -0.16, -89.55) (   0.44, -92.19)  301.05                80
 10/29/2025   07:14:07   (  -0.18, -89.56) (  -0.62, -87.66)  216.25                80
 10/30/2025   19:38:41   (   0.15, -89.58) (  -0.61, -92.94)  383.05                80
 10/31/2025   19:17:15   (   0.17, -89.60) (   0.47, -88.42)  135.13                80