Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 2 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/01/2019   10:01:44   (  -0.01,-128.38) (   0.11,-128.87)   56.09                80
 03/02/2019   09:40:18   (  -0.00,-128.39) (  -0.88,-124.33)  461.37                80
 03/03/2019   22:04:53   (  -0.00,-128.35) (  -0.32,-129.63)  147.25                80
 03/04/2019   21:43:29   (  -0.00,-128.35) (   0.74,-125.11)  369.89                80
 03/06/2019   10:05:15   (   0.00,-128.41) (   0.47,-130.37)  224.20                80
 03/07/2019   09:49:11   (   0.00,-128.41) (  -0.59,-125.84)  292.80                80
 03/08/2019   22:11:06   (  -0.00,-128.36) (  -0.61,-131.14)  316.45                80
 03/09/2019   21:49:41   (  -0.00,-128.36) (   0.39,-126.60)  200.18                80
 03/11/2019   10:11:28   (   0.00,-128.41) (   0.76,-131.88)  394.88                80
 03/12/2019   09:55:22   (   0.00,-128.40) (  -0.24,-127.34)  121.38                80
 03/13/2019   22:17:18   (  -0.00,-128.35) (  -0.96,-132.64)  489.07                80