Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 8 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)
 08/31/2020   10:05:25   (  -0.07,-127.78) (   0.47,-130.32)  289.12                80
 09/01/2020   09:49:20   (  -0.07,-127.81) (  -0.53,-125.78)  231.26                80
 09/02/2020   22:11:18   (   0.08,-127.80) (  -0.65,-131.09)  374.52                80
 09/03/2020   21:49:53   (   0.08,-127.84) (   0.36,-126.56)  145.72                80
 09/05/2020   10:11:43   (  -0.08,-127.96) (   0.76,-131.84)  442.09                80
 09/06/2020   09:55:38   (  -0.08,-127.99) (  -0.24,-127.31)   78.01                80
 09/08/2020   21:58:51   (   0.08,-128.01) (   0.08,-128.09)    8.84                80
 09/11/2020   09:59:16   (  -0.09,-128.14) (   0.04,-128.84)   78.97                80
 09/12/2020   09:43:11   (  -0.09,-128.16) (  -0.96,-124.30)  440.03                80