Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 3 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)
 03/03/2019   22:04:54   (  -0.00,-128.35) (  -0.30,-129.63)  147.18                80
 03/04/2019   21:43:29   (  -0.00,-128.35) (   0.75,-125.11)  369.92                80
 03/06/2019   10:05:15   (   0.00,-128.40) (   0.46,-130.37)  224.40                80
 03/07/2019   09:46:31   (   0.00,-128.41) (  -0.60,-125.85)  292.55                80
 03/08/2019   22:11:06   (  -0.00,-128.36) (  -0.60,-131.14)  316.57                80
 03/09/2019   21:49:41   (   0.00,-128.36) (   0.40,-126.61)  200.01                80
 03/11/2019   10:11:28   (   0.00,-128.40) (   0.75,-131.88)  395.31                80
 03/12/2019   09:55:23   (  -0.00,-128.40) (  -0.25,-127.34)  120.92                80
 03/13/2019   22:17:18   (  -0.00,-128.34) (  -0.95,-132.64)  489.35                80
 03/14/2019   21:55:53   (  -0.00,-128.33) (   0.05,-128.10)   26.22                80