Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 5 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/24/2020   22:04:35   (   0.04,-128.22) (  -0.29,-129.57)  154.74                80
 05/25/2020   21:43:11   (   0.05,-128.21) (   0.74,-125.05)  360.08                80
 05/27/2020   10:07:38   (  -0.03,-128.20) (   0.45,-130.31)  240.99                80
 05/28/2020   09:46:14   (  -0.04,-128.18) (  -0.59,-125.78)  273.08                80
 05/29/2020   22:10:49   (   0.02,-128.13) (  -0.63,-131.08)  335.46                80
 05/30/2020   21:49:24   (   0.03,-128.11) (   0.40,-126.55)  178.86                80
 06/01/2020   10:13:51   (  -0.01,-128.10) (   0.85,-131.80)  422.36                80
 06/02/2020   09:52:26   (  -0.02,-128.07) (  -0.19,-127.27)   91.25                80
 06/04/2020   21:55:37   (   0.01,-127.99) (   0.01,-128.04)    5.24                80