Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 9 13.  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   07:21:15   (  -0.23, -89.48) (  -0.27, -89.42)    7.57                80
 09/18/2025   19:24:24   (   0.24, -89.53) (   0.11, -90.19)   74.71                80
 09/19/2025   19:08:19   (   0.24, -89.53) (   1.11, -85.65)  442.82                80
 09/21/2025   07:30:06   (  -0.24, -89.51) (   0.06, -90.92)  160.21                80
 09/22/2025   07:08:41   (  -0.24, -89.52) (  -0.94, -86.38)  357.35                80
 09/23/2025   19:30:36   (   0.24, -89.57) (  -0.22, -91.68)  240.20                80
 09/24/2025   19:14:31   (   0.24, -89.58) (   0.79, -87.15)  277.84                80
 09/26/2025   07:36:18   (  -0.23, -89.57) (   0.38, -92.42)  324.10                80
 09/27/2025   07:14:52   (  -0.24, -89.58) (  -0.62, -87.88)  193.52                80