Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 9 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/02/2020   22:11:18   (   0.08,-127.81) (  -0.66,-131.09)  374.28                80
 09/03/2020   21:49:53   (   0.08,-127.84) (   0.35,-126.56)  145.92                80
 09/05/2020   10:11:42   (  -0.08,-127.95) (   0.77,-131.84)  442.46                80
 09/06/2020   09:55:38   (  -0.08,-127.99) (  -0.24,-127.31)   77.57                80
 09/08/2020   21:58:51   (   0.08,-128.00) (   0.07,-128.08)    8.89                80
 09/11/2020   09:59:16   (  -0.09,-128.13) (   0.04,-128.83)   79.66                80
 09/12/2020   09:43:11   (  -0.09,-128.15) (  -0.97,-124.30)  439.32                80
 09/13/2020   22:05:07   (   0.10,-128.13) (  -0.24,-129.60)  168.08                80
 09/14/2020   21:43:43   (   0.10,-128.15) (   0.76,-125.07)  350.43                80