Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 2 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/23/2019   10:14:17   (  -0.02,-128.32) (   0.78,-131.91)  408.57                80
 02/24/2019   09:52:51   (  -0.02,-128.34) (  -0.22,-127.37)  109.74                80
 02/25/2019   22:17:27   (   0.02,-128.30) (  -0.98,-132.67)  498.54                80
 02/26/2019   21:56:02   (   0.02,-128.31) (   0.07,-128.14)   19.66                80
 03/01/2019   10:01:44   (   0.00,-128.40) (   0.09,-128.88)   53.81                80
 03/02/2019   09:40:19   (   0.00,-128.41) (  -0.90,-124.34)  463.95                80
 03/03/2019   22:04:54   (  -0.00,-128.36) (  -0.29,-129.64)  145.29                80
 03/04/2019   21:43:28   (  -0.00,-128.37) (   0.70,-125.10)  372.23                80
 03/06/2019   10:05:16   (   0.00,-128.45) (   0.45,-130.37)  220.14                80
 03/07/2019   09:46:31   (   0.00,-128.45) (  -0.60,-125.85)  297.25                80