Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 8 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/23/2020   21:56:03   (   0.05,-127.73) (  -0.01,-128.06)   37.32                80
 08/24/2020   21:39:59   (   0.05,-127.69) (   0.98,-123.52)  474.78                80
 08/26/2020   09:59:07   (  -0.05,-127.67) (   0.19,-128.79)  128.23                80
 08/27/2020   09:43:03   (  -0.05,-127.62) (  -0.81,-124.26)  383.35                80
 08/28/2020   22:02:19   (   0.06,-127.51) (  -0.42,-129.56)  233.58                80
 08/29/2020   21:46:16   (   0.06,-127.47) (   0.63,-125.04)  277.94                80
 08/31/2020   10:05:23   (  -0.07,-127.44) (   0.60,-130.29)  325.57                80
 09/01/2020   09:49:19   (  -0.07,-127.40) (  -0.46,-125.77)  185.89                80
 09/02/2020   22:08:36   (   0.08,-127.28) (  -0.77,-131.07)  431.23                80
 09/03/2020   21:52:31   (   0.07,-127.24) (   0.23,-126.53)   80.21                80
 09/06/2020   09:52:55   (  -0.08,-127.16) (  -0.06,-127.27)   12.24                80