Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 2 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/18/2022   21:56:11   (  -0.01,-127.90) (  -0.07,-128.04)   16.54                80
 02/19/2022   21:40:07   (  -0.00,-127.87) (   1.00,-123.52)  496.64                80
 02/21/2022   10:01:54   (   0.01,-127.80) (   0.23,-128.78)  111.63                80
 02/22/2022   09:40:30   (   0.00,-127.76) (  -0.78,-124.25)  400.58                80
 02/23/2022   22:02:26   (  -0.01,-127.72) (  -0.43,-129.55)  208.50                80
 02/24/2022   21:46:22   (  -0.01,-127.68) (   0.58,-125.02)  303.46                80
 02/26/2022   10:08:10   (   0.01,-127.60) (   0.59,-130.29)  305.90                80
 02/27/2022   09:46:45   (   0.01,-127.56) (  -0.37,-125.75)  205.51                80
 02/28/2022   22:08:41   (  -0.01,-127.51) (  -0.83,-131.05)  404.95                80
 03/01/2022   21:52:36   (  -0.01,-127.46) (   0.18,-126.52)  106.71                80