Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 10 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/13/2020   09:59:14   (  -0.14,-128.41) (  -0.06,-128.86)   51.49                80
 10/14/2020   09:43:09   (  -0.14,-128.40) (  -1.05,-124.33)  464.00                80
 10/15/2020   22:05:04   (   0.14,-128.37) (  -0.15,-129.63)  143.38                80
 10/16/2020   21:43:39   (   0.14,-128.36) (   0.90,-125.11)  371.60                80
 10/18/2020   10:08:06   (  -0.13,-128.35) (   0.34,-130.36)  229.81                80
 10/19/2020   09:49:21   (  -0.14,-128.34) (  -0.71,-125.84)  284.97                80
 10/20/2020   22:11:17   (   0.13,-128.30) (  -0.48,-131.14)  323.21                80
 10/21/2020   21:49:51   (   0.14,-128.28) (   0.51,-126.61)  190.91                80
 10/23/2020   10:14:18   (  -0.13,-128.26) (   0.67,-131.88)  411.86                80
 10/24/2020   09:52:53   (  -0.14,-128.24) (  -0.33,-127.34)  102.33                80