Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 12 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/28/2022   09:50:23   (   0.01,-127.65) (  -0.44,-125.76)  216.28                80
 12/29/2022   22:12:22   (   0.00,-127.63) (  -0.74,-131.07)  391.39                80
 12/30/2022   21:53:38   (  -0.00,-127.66) (   0.28,-126.54)  128.55                80
 01/01/2023   10:12:47   (  -0.01,-127.79) (   0.90,-131.81)  458.66                80
 01/02/2023   09:56:44   (   0.00,-127.82) (  -0.12,-127.28)   61.16                80
 01/04/2023   21:59:59   (  -0.00,-127.82) (  -0.03,-128.07)   27.63                80
 01/05/2023   21:38:34   (  -0.01,-127.85) (   0.93,-123.53)  491.68                80
 01/07/2023   10:00:25   (   0.01,-127.96) (   0.18,-128.81)   96.76                80
 01/08/2023   09:44:21   (   0.01,-127.99) (  -0.84,-124.29)  422.39                80
 01/09/2023   22:06:18   (  -0.01,-127.95) (  -0.37,-129.58)  186.11                80
 01/10/2023   21:44:55   (  -0.01,-127.97) (   0.66,-125.06)  332.60                80