Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 6 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/13/2022   09:58:50   (  -0.02,-128.33) (   0.05,-128.71)   43.95                80
 06/14/2022   09:42:47   (  -0.01,-128.34) (  -0.95,-124.19)  473.77                80
 06/15/2022   22:02:05   (   0.04,-128.36) (  -0.23,-129.50)  130.49                80
 06/16/2022   21:46:02   (   0.03,-128.37) (   0.78,-124.97)  387.30                80
 06/18/2022   10:05:12   (  -0.06,-128.40) (   0.36,-130.26)  211.85                80
 06/19/2022   09:49:08   (  -0.04,-128.41) (  -0.65,-125.73)  305.68                80
 06/20/2022   22:08:27   (   0.07,-128.42) (  -0.53,-131.04)  299.25                80
 06/21/2022   21:52:23   (   0.05,-128.43) (   0.48,-126.51)  218.55                80
 06/23/2022   10:11:34   (  -0.09,-128.46) (   0.66,-131.80)  380.21                80
 06/24/2022   09:55:30   (  -0.07,-128.47) (  -0.35,-127.27)  137.01                80
 06/25/2022   22:14:48   (   0.11,-128.47) (  -0.82,-132.59)  469.29                80
 06/26/2022   21:58:45   (   0.10,-128.48) (   0.20,-128.06)   47.82                80