Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 6 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/10/2022   21:58:24   (   0.01,-128.27) (   0.10,-127.96)   36.16                80
 06/13/2022   09:58:50   (  -0.02,-128.32) (   0.04,-128.72)   44.32                80
 06/14/2022   09:42:47   (  -0.01,-128.34) (  -0.97,-124.19)  473.33                80
 06/15/2022   22:02:05   (   0.04,-128.35) (  -0.22,-129.50)  131.40                80
 06/16/2022   21:46:02   (   0.03,-128.36) (   0.79,-124.97)  386.19                80
 06/18/2022   10:05:12   (  -0.06,-128.39) (   0.35,-130.26)  213.01                80
 06/19/2022   09:49:09   (  -0.04,-128.40) (  -0.66,-125.73)  304.38                80
 06/20/2022   22:08:27   (   0.07,-128.40) (  -0.52,-131.04)  300.96                80
 06/21/2022   21:52:24   (   0.05,-128.41) (   0.49,-126.52)  216.66                80
 06/23/2022   10:11:34   (  -0.09,-128.44) (   0.65,-131.80)  382.22                80