Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 10 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/15/2020   22:05:04   (   0.14,-128.38) (  -0.13,-129.63)  142.50                80
 10/16/2020   21:43:39   (   0.14,-128.37) (   0.85,-125.09)  372.71                80
 10/18/2020   10:05:26   (  -0.13,-128.36) (   0.32,-130.37)  228.23                80
 10/19/2020   09:49:22   (  -0.14,-128.35) (  -0.73,-125.84)  286.80                80
 10/20/2020   22:11:16   (   0.13,-128.32) (  -0.53,-131.13)  321.08                80
 10/21/2020   21:49:51   (   0.14,-128.30) (   0.52,-126.61)  193.27                80
 10/23/2020   10:14:19   (  -0.13,-128.28) (   0.65,-131.88)  409.09                80
 10/24/2020   09:52:53   (  -0.14,-128.27) (  -0.34,-127.34)  105.35                80
 10/26/2020   21:56:03   (   0.14,-128.22) (   0.14,-128.11)   11.78                80