Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 12 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)
 12/20/2023   09:05:20   (   0.02,  61.29) (   0.91,  65.23)  448.99                80
 12/21/2023   21:27:06   (  -0.04,  61.22) (   0.25,  59.96)  143.64                80
 12/22/2023   21:05:41   (  -0.03,  61.23) (  -0.78,  64.49)  372.28                80
 12/24/2023   09:27:35   (   0.04,  61.33) (  -0.44,  59.20)  242.50                80
 12/25/2023   09:11:29   (   0.03,  61.34) (   0.54,  63.74)  273.83                80
 12/26/2023   21:33:15   (  -0.04,  61.26) (   0.61,  58.48)  318.32                80
 12/27/2023   21:11:50   (  -0.03,  61.28) (  -0.42,  63.01)  197.07                80
 12/29/2023   09:33:44   (   0.04,  61.40) (  -0.78,  57.71)  419.55                80
 12/30/2023   09:17:38   (   0.03,  61.41) (   0.20,  62.26)   96.43                80
 12/31/2023   21:39:24   (  -0.05,  61.32) (   0.94,  56.99)  494.70                80
 01/01/2024   21:17:58   (  -0.04,  61.34) (  -0.10,  61.52)   20.68                80