Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 7 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)
 07/10/2025   19:37:00   (   0.05, -89.92) (  -0.70, -93.22)  376.02                80
 07/11/2025   19:20:53   (   0.05, -89.39) (   0.18, -88.66)   82.82                80
 07/14/2025   07:21:12   (  -0.05, -88.03) (   0.25, -89.34)  148.81                80
 07/15/2025   07:05:06   (  -0.05, -87.51) (  -0.64, -84.78)  310.39                80
 07/16/2025   19:24:21   (   0.06, -86.72) (  -0.67, -90.06)  379.87                80
 07/17/2025   19:08:14   (   0.06, -86.20) (   0.21, -85.50)   79.50                80
 07/20/2025   07:08:33   (  -0.07, -84.85) (   0.22, -86.18)  151.34                80
 07/21/2025   06:52:27   (  -0.07, -84.33) (  -0.67, -81.62)  307.88                80
 07/22/2025   19:11:41   (   0.08, -83.54) (  -0.69, -86.89)  382.39                80
 07/23/2025   18:55:35   (   0.08, -83.02) (   0.20, -82.34)   77.28                80