Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 8 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/07/2020   21:58:38   (   0.01,-128.25) (   0.08,-128.07)   21.38                80
 08/10/2020   10:01:42   (  -0.01,-128.23) (   0.10,-128.80)   65.26                80
 08/11/2020   09:40:17   (  -0.01,-128.20) (  -0.89,-124.27)  447.97                80
 08/12/2020   22:02:15   (   0.01,-128.11) (  -0.29,-129.58)  166.83                80
 08/13/2020   21:46:10   (   0.01,-128.08) (   0.70,-125.04)  346.09                80
 08/15/2020   10:05:18   (  -0.02,-128.07) (   0.47,-130.31)  255.18                80
 08/16/2020   09:49:14   (  -0.02,-128.03) (  -0.52,-125.78)  257.15                80
 08/17/2020   22:08:30   (   0.02,-127.93) (  -0.71,-131.07)  359.21                80
 08/18/2020   21:52:27   (   0.02,-127.89) (   0.34,-126.55)  153.02                80
 08/20/2020   10:11:34   (  -0.02,-127.88) (   0.89,-131.81)  448.96                80
 08/21/2020   09:55:31   (  -0.02,-127.84) (  -0.17,-127.29)   63.02                80