Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2026 4 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)
 04/21/2026   09:19:16   (  -0.58,  63.23) (  -0.44,  63.78)   63.66                80
 04/23/2026   21:19:45   (   0.54,  63.30) (   0.62,  63.04)   30.65                80
 04/24/2026   21:03:42   (   0.60,  63.31) (  -0.37,  67.57)  486.05                80
 04/26/2026   09:23:05   (  -0.49,  63.25) (  -0.73,  62.24)  115.01                80
 04/27/2026   09:07:02   (  -0.54,  63.25) (   0.26,  66.77)  402.01                80
 04/28/2026   21:26:14   (   0.43,  63.31) (   0.84,  61.48)  208.68                80
 04/29/2026   21:10:12   (   0.48,  63.32) (  -0.15,  66.01)  307.90                80
 05/01/2026   09:29:34   (  -0.36,  63.27) (  -0.94,  60.68)  294.47                80
 05/02/2026   09:13:31   (  -0.42,  63.27) (  -0.01,  65.23)  222.15                80
 05/03/2026   21:32:44   (   0.30,  63.34) (   1.04,  59.93)  388.93                80