Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 7 23.  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)
 07/24/2025   07:33:50   (  -0.09, -89.47) (   0.59, -92.44)  339.16                80
 07/25/2025   07:17:46   (  -0.09, -89.47) (  -0.42, -87.91)  177.11                80
 07/26/2025   19:37:03   (   0.10, -89.51) (  -0.76, -93.22)  423.46                80
 07/27/2025   19:20:58   (   0.09, -89.51) (   0.26, -88.69)   93.36                80
 07/30/2025   07:24:02   (  -0.10, -89.49) (  -0.13, -89.44)    6.65                80
 08/01/2025   19:24:34   (   0.11, -89.55) (  -0.07, -90.21)   76.13                80
 08/02/2025   19:08:30   (   0.11, -89.55) (   0.95, -85.68)  441.07                80
 08/04/2025   07:27:38   (  -0.12, -89.52) (   0.20, -90.96)  162.99                80
 08/05/2025   07:11:33   (  -0.12, -89.53) (  -0.82, -86.43)  354.15                80