Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 3 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/02/2019   09:40:18   (  -0.00,-128.39) (  -0.89,-124.34)  461.32                80
 03/03/2019   22:04:54   (  -0.00,-128.35) (  -0.31,-129.63)  147.11                80
 03/04/2019   21:43:29   (  -0.00,-128.35) (   0.75,-125.11)  370.03                80
 03/06/2019   10:05:15   (   0.00,-128.41) (   0.46,-130.37)  224.16                80
 03/07/2019   09:49:11   (   0.00,-128.41) (  -0.59,-125.85)  292.84                80
 03/08/2019   22:11:06   (  -0.00,-128.36) (  -0.60,-131.14)  316.28                80
 03/09/2019   21:49:41   (  -0.00,-128.36) (   0.39,-126.61)  200.35                80
 03/11/2019   10:11:28   (   0.00,-128.41) (   0.75,-131.88)  394.83                80
 03/12/2019   09:55:23   (   0.00,-128.41) (  -0.25,-127.34)  121.44                80
 03/13/2019   22:17:18   (  -0.00,-128.35) (  -0.95,-132.64)  488.85                80
 03/14/2019   21:55:52   (  -0.00,-128.34) (   0.05,-128.10)   26.76                80