Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2023   21:27:09   (  -0.04,  61.22) (   0.23,  59.95)  144.39                80
 12/22/2023   21:05:42   (  -0.03,  61.23) (  -0.76,  64.49)  371.66                80
 12/24/2023   09:27:32   (   0.04,  61.33) (  -0.46,  59.22)  241.30                80
 12/25/2023   09:11:22   (   0.03,  61.34) (   0.57,  63.77)  277.23                80
 12/26/2023   21:32:57   (  -0.04,  61.26) (   0.58,  58.55)  309.94                80
 12/27/2023   21:11:22   (  -0.03,  61.28) (  -0.41,  63.12)  209.72                80
 12/29/2023   09:32:59   (   0.04,  61.39) (  -0.73,  57.89)  398.74                80
 12/30/2023   09:16:40   (   0.03,  61.41) (   0.30,  62.48)  123.61                80
 12/31/2023   21:38:01   (  -0.05,  61.32) (   0.84,  57.32)  456.23                80
 01/01/2024   21:16:16   (  -0.04,  61.34) (  -0.17,  61.93)   67.45                80