Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 7 26.  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)
 07/27/2025   19:20:59   (   0.09, -89.51) (   0.30, -88.70)   93.10                80
 07/30/2025   07:24:02   (  -0.10, -89.48) (  -0.12, -89.44)    5.84                80
 08/01/2025   19:24:35   (   0.11, -89.54) (  -0.02, -90.22)   77.09                80
 08/02/2025   19:08:30   (   0.11, -89.54) (   1.00, -85.69)  439.97                80
 08/04/2025   07:27:38   (  -0.12, -89.51) (   0.20, -90.95)  164.17                80
 08/05/2025   07:11:33   (  -0.12, -89.52) (  -0.81, -86.42)  352.83                80
 08/06/2025   19:30:50   (   0.13, -89.57) (  -0.32, -91.74)  246.79                80
 08/07/2025   19:14:45   (   0.13, -89.57) (   0.64, -87.20)  270.44                80
 08/09/2025   07:33:53   (  -0.14, -89.55) (   0.51, -92.47)  333.27                80