Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 7 6.  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)
 07/08/2025   07:33:51   (  -0.04, -91.24) (   0.26, -92.50)  143.78                80
 07/09/2025   07:17:45   (  -0.04, -90.71) (  -0.68, -87.95)  314.88                80
 07/10/2025   19:37:00   (   0.05, -89.92) (  -0.70, -93.22)  376.30                80
 07/11/2025   19:20:53   (   0.05, -89.39) (   0.18, -88.66)   82.62                80
 07/14/2025   07:21:12   (  -0.05, -88.04) (   0.25, -89.34)  148.62                80
 07/15/2025   07:05:06   (  -0.05, -87.51) (  -0.64, -84.78)  310.67                80
 07/16/2025   19:24:21   (   0.06, -86.73) (  -0.67, -90.06)  379.63                80
 07/17/2025   19:08:14   (   0.05, -86.20) (   0.22, -85.50)   79.84                80
 07/20/2025   07:08:33   (  -0.06, -84.86) (   0.21, -86.18)  150.63                80