Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 1 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/20/2022   09:59:32   (  -0.04,-128.36) (   0.07,-128.84)   55.69                80
 01/21/2022   09:43:25   (  -0.04,-128.36) (  -0.92,-124.30)  461.21                80
 01/22/2022   22:02:40   (   0.04,-128.36) (  -0.26,-129.60)  142.62                80
 01/23/2022   21:46:34   (   0.04,-128.35) (   0.79,-125.07)  374.21                80
 01/25/2022   10:08:19   (  -0.04,-128.34) (   0.39,-130.33)  226.49                80
 01/26/2022   09:46:53   (  -0.04,-128.34) (  -0.60,-125.79)  289.76                80
 01/27/2022   22:08:47   (   0.04,-128.32) (  -0.57,-131.09)  315.46                80
 01/28/2022   21:52:41   (   0.03,-128.31) (   0.43,-126.55)  200.44                80
 01/30/2022   10:14:26   (  -0.02,-128.29) (   0.75,-131.81)  401.38                80
 01/31/2022   09:53:00   (  -0.02,-128.27) (  -0.24,-127.27)  114.06                80