Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 12 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/30/2022   21:50:57   (  -0.00,-127.66) (   0.23,-126.53)  128.66                80
 01/01/2023   10:12:48   (  -0.00,-127.79) (   0.89,-131.81)  458.64                80
 01/02/2023   09:56:44   (   0.00,-127.82) (  -0.13,-127.29)   61.15                80
 01/04/2023   21:59:58   (  -0.00,-127.82) (  -0.08,-128.06)   27.65                80
 01/05/2023   21:38:35   (  -0.01,-127.84) (   0.94,-123.53)  491.59                80
 01/07/2023   10:00:25   (   0.01,-127.96) (   0.17,-128.81)   96.95                80
 01/08/2023   09:44:20   (   0.01,-127.98) (  -0.79,-124.27)  422.18                80
 01/09/2023   22:06:19   (  -0.01,-127.95) (  -0.37,-129.59)  186.36                80
 01/10/2023   21:44:55   (  -0.01,-127.97) (   0.66,-125.06)  332.35                80
 01/12/2023   10:06:45   (   0.01,-128.08) (   0.51,-130.33)  257.02                80