Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 4 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/03/2019   09:42:35   (   0.05,-128.05) (  -0.78,-124.23)  435.36                80
 04/04/2019   22:04:31   (  -0.05,-127.99) (  -0.42,-129.52)  174.91                80
 04/05/2019   21:43:05   (  -0.05,-127.97) (   0.59,-124.99)  338.77                80
 04/07/2019   10:04:51   (   0.05,-127.93) (   0.59,-130.25)  264.45                80
 04/08/2019   09:48:46   (   0.05,-127.90) (  -0.41,-125.71)  248.90                80
 04/09/2019   22:08:01   (  -0.05,-127.83) (  -0.78,-131.01)  362.45                80
 04/10/2019   21:51:56   (  -0.06,-127.80) (   0.23,-126.48)  150.29                80
 04/12/2019   10:11:02   (   0.06,-127.75) (   0.96,-131.74)  454.61                80
 04/13/2019   09:54:57   (   0.06,-127.71) (  -0.05,-127.20)   57.81                80
 04/15/2019   21:55:27   (  -0.07,-127.59) (  -0.12,-127.97)   42.44                80