Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2025 9 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/19/2025   09:24:20   (   0.55,  61.33) (   0.38,  60.53)   90.54                80
 09/20/2025   09:08:18   (   0.56,  61.33) (   1.41,  65.06)  425.58                80
 09/21/2025   21:30:07   (  -0.53,  61.37) (  -0.18,  59.80)  179.18                80
 09/22/2025   21:08:45   (  -0.55,  61.37) (  -1.21,  64.32)  335.88                80
 09/24/2025   09:33:24   (   0.52,  61.33) (   0.02,  59.01)  264.30                80
 09/25/2025   09:12:02   (   0.54,  61.33) (   1.06,  63.53)  251.37                80
 09/26/2025   21:36:31   (  -0.50,  61.37) (   0.18,  58.27)  352.96                80
 09/27/2025   21:15:08   (  -0.52,  61.38) (  -0.86,  62.79)  161.21                80
 09/29/2025   09:39:47   (   0.48,  61.37) (  -0.37,  57.49)  441.32                80
 09/30/2025   09:18:24   (   0.51,  61.37) (   0.67,  62.01)   73.43                80