Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 9 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)
 09/16/2025   07:21:14   (  -0.23, -89.47) (  -0.25, -89.41)    6.85                80
 09/18/2025   19:24:24   (   0.24, -89.53) (   0.09, -90.18)   74.71                80
 09/19/2025   19:08:19   (   0.24, -89.53) (   1.09, -85.64)  442.77                80
 09/21/2025   07:30:06   (  -0.24, -89.51) (   0.09, -90.91)  160.43                80
 09/22/2025   07:08:40   (  -0.24, -89.51) (  -0.92, -86.37)  357.12                80
 09/23/2025   19:30:36   (   0.24, -89.57) (  -0.24, -91.68)  240.35                80
 09/24/2025   19:14:30   (   0.24, -89.58) (   0.77, -87.14)  277.67                80
 09/26/2025   07:36:17   (  -0.23, -89.56) (   0.40, -92.41)  324.42                80
 09/27/2025   07:14:52   (  -0.24, -89.57) (  -0.61, -87.88)  193.17                80