Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 9 10.  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)
 09/11/2025   07:15:02   (  -0.22, -89.48) (  -0.57, -87.91)  178.53                80
 09/12/2025   19:36:57   (   0.22, -89.52) (  -0.60, -93.22)  421.19                80
 09/13/2025   19:20:52   (   0.23, -89.52) (   0.40, -88.68)   95.34                80
 09/16/2025   07:21:14   (  -0.23, -89.48) (  -0.27, -89.42)    7.55                80
 09/18/2025   19:24:24   (   0.24, -89.52) (   0.11, -90.19)   75.16                80
 09/19/2025   19:08:19   (   0.24, -89.53) (   1.11, -85.65)  442.35                80
 09/21/2025   07:30:06   (  -0.24, -89.51) (   0.07, -90.92)  160.17                80
 09/22/2025   07:08:41   (  -0.24, -89.52) (  -0.94, -86.38)  357.39                80
 09/23/2025   19:30:36   (   0.24, -89.57) (  -0.22, -91.68)  240.72                80