Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 10 14.  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)
 10/15/2025   19:17:41   (   0.23, -89.51) (   0.46, -88.54)  110.94                80
 10/17/2025   07:42:06   (  -0.20, -89.49) (   0.78, -93.78)  490.19                80
 10/18/2025   07:20:40   (  -0.22, -89.49) (  -0.27, -89.25)   26.91                80
 10/20/2025   19:26:28   (   0.20, -89.54) (   0.08, -90.01)   54.05                80
 10/21/2025   19:05:03   (   0.22, -89.55) (   1.13, -85.48)  463.94                80
 10/23/2025   07:29:27   (  -0.19, -89.53) (   0.09, -90.72)  135.78                80
 10/24/2025   07:08:01   (  -0.20, -89.54) (  -0.97, -86.19)  381.62                80
 10/25/2025   19:32:35   (   0.17, -89.57) (  -0.27, -91.48)  217.21                80
 10/26/2025   19:11:09   (   0.19, -89.59) (   0.79, -86.95)  300.75                80
 10/28/2025   07:35:33   (  -0.16, -89.58) (   0.42, -92.20)  297.89                80