Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 7 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)
 07/14/2025   07:22:46   (  -0.05, -89.49) (  -0.05, -89.40)    9.64                 9
 07/16/2025   19:24:31   (   0.06, -89.54) (  -0.08, -90.19)   74.52                80
 07/17/2025   19:08:26   (   0.05, -89.54) (   0.92, -85.66)  442.59                80
 07/19/2025   07:27:34   (  -0.06, -89.52) (   0.27, -90.92)  160.16                80
 07/20/2025   07:11:30   (  -0.06, -89.53) (  -0.79, -86.41)  356.89                80
 07/21/2025   19:30:48   (   0.07, -89.57) (  -0.39, -91.71)  244.07                80
 07/22/2025   19:14:43   (   0.07, -89.58) (   0.62, -87.18)  273.04                80
 07/24/2025   07:33:50   (  -0.09, -89.56) (   0.58, -92.45)  329.46                80
 07/25/2025   07:17:46   (  -0.08, -89.57) (  -0.43, -87.92)  188.17                80
 07/26/2025   19:37:03   (   0.09, -89.62) (  -0.74, -93.23)  411.37                80