Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2025 9 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/21/2025   21:30:07   (  -0.53,  61.36) (  -0.19,  59.79)  178.77                80
 09/22/2025   21:08:45   (  -0.55,  61.37) (  -1.23,  64.31)  336.35                80
 09/24/2025   09:33:23   (   0.52,  61.33) (  -0.01,  59.02)  263.78                80
 09/25/2025   09:12:01   (   0.54,  61.33) (   1.03,  63.54)  251.89                80
 09/26/2025   21:36:30   (  -0.50,  61.37) (   0.21,  58.28)  352.34                80
 09/27/2025   21:15:08   (  -0.53,  61.38) (  -0.83,  62.80)  161.89                80
 09/29/2025   09:39:46   (   0.48,  61.36) (  -0.40,  57.50)  440.59                80
 09/30/2025   09:18:23   (   0.51,  61.37) (   0.65,  62.02)   74.21                80
 10/02/2025   21:24:10   (  -0.50,  61.42) (  -0.45,  61.28)   15.80                80
 10/03/2025   21:02:48   (  -0.52,  61.43) (  -1.50,  65.80)  497.80                80