Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2020 2 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/29/2020   21:58:24   (   0.36,-128.46) (   0.45,-128.17)   34.35                80
 03/03/2020   10:01:28   (  -0.35,-128.43) (  -0.28,-128.91)   53.45                80
 03/04/2020   09:40:03   (  -0.35,-128.42) (  -1.29,-124.38)  462.09                80
 03/05/2020   22:02:00   (   0.35,-128.43) (   0.07,-129.68)  141.99                80
 03/06/2020   21:45:55   (   0.34,-128.42) (   1.08,-125.14)  373.23                80
 03/08/2020   10:07:43   (  -0.34,-128.38) (   0.09,-130.42)  231.25                80
 03/09/2020   09:46:19   (  -0.34,-128.37) (  -0.92,-125.89)  283.53                80
 03/10/2020   22:08:15   (   0.33,-128.36) (  -0.29,-131.19)  321.59                80
 03/11/2020   21:52:11   (   0.34,-128.35) (   0.72,-126.66)  193.16                80
 03/13/2020   10:13:58   (  -0.33,-128.31) (   0.50,-131.92)  411.52                80
 03/14/2020   09:52:34   (  -0.33,-128.29) (  -0.51,-127.39)  102.70                80