Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 10 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/20/2020   22:11:16   (   0.13,-128.32) (  -0.50,-131.13)  321.21                80
 10/21/2020   21:49:51   (   0.14,-128.30) (   0.49,-126.60)  193.11                80
 10/23/2020   10:14:18   (  -0.13,-128.28) (   0.68,-131.87)  408.86                80
 10/24/2020   09:52:54   (  -0.14,-128.27) (  -0.37,-127.35)  105.60                80
 10/26/2020   21:56:03   (   0.14,-128.21) (   0.17,-128.11)   11.50                80
 10/29/2020   10:01:45   (  -0.13,-128.17) (   0.00,-128.85)   76.71                80
 10/30/2020   09:40:20   (  -0.14,-128.16) (  -0.99,-124.31)  437.52                80
 10/31/2020   22:04:55   (   0.12,-128.11) (  -0.20,-129.62)  170.99                80
 11/01/2020   21:43:30   (   0.13,-128.09) (   0.80,-125.08)  342.56                80