Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 8 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/26/2020   09:59:07   (  -0.05,-127.67) (   0.20,-128.79)  128.21                80
 08/27/2020   09:43:03   (  -0.05,-127.62) (  -0.79,-124.26)  383.35                80
 08/28/2020   22:02:20   (   0.06,-127.51) (  -0.38,-129.56)  233.66                80
 08/29/2020   21:46:15   (   0.06,-127.47) (   0.62,-125.03)  277.81                80
 08/31/2020   10:05:24   (  -0.07,-127.44) (   0.55,-130.30)  325.61                80
 09/01/2020   09:49:19   (  -0.07,-127.40) (  -0.45,-125.77)  185.80                80
 09/02/2020   22:08:35   (   0.08,-127.28) (  -0.78,-131.06)  431.41                80
 09/03/2020   21:52:31   (   0.07,-127.24) (   0.22,-126.53)   80.02                80
 09/06/2020   09:52:55   (  -0.08,-127.16) (  -0.05,-127.27)   12.39                80
 09/07/2020   09:36:50   (  -0.07,-127.11) (  -1.05,-122.73)  498.59                80