Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 7 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/30/2020   10:07:52   (  -0.02,-128.41) (   0.41,-130.31)  216.34                80
 07/31/2020   09:46:27   (  -0.01,-128.40) (  -0.58,-125.77)  299.08                80
 08/01/2020   22:08:24   (   0.01,-128.33) (  -0.61,-131.08)  313.21                80
 08/02/2020   21:52:20   (   0.01,-128.32) (   0.38,-126.54)  202.20                80
 08/04/2020   10:14:09   (  -0.01,-128.37) (   0.74,-131.83)  393.60                80
 08/05/2020   09:52:45   (  -0.01,-128.36) (  -0.25,-127.29)  121.60                80
 08/06/2020   22:14:42   (   0.01,-128.28) (  -0.93,-132.60)  491.21                80
 08/07/2020   21:58:38   (   0.01,-128.27) (   0.06,-128.07)   24.00                80
 08/10/2020   10:01:41   (  -0.00,-128.30) (   0.13,-128.80)   57.19                80
 08/11/2020   09:40:18   (  -0.00,-128.29) (  -0.92,-124.28)  457.53                80