Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 6 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/07/2020   22:39:53   (   0.01,-137.16) (  -0.44,-139.03)  213.38                80
 06/08/2020   22:23:48   (   0.01,-137.15) (   0.60,-134.50)  302.14                80
 06/10/2020   10:45:36   (  -0.01,-137.14) (   0.59,-139.77)  299.93                80
 06/11/2020   10:24:11   (  -0.01,-137.12) (  -0.45,-135.24)  215.35                80
 06/12/2020   22:46:07   (   0.00,-137.10) (  -0.77,-140.53)  390.77                80
 06/13/2020   22:30:02   (   0.00,-137.09) (   0.27,-136.01)  124.46                80
 06/15/2020   10:51:49   (  -0.00,-137.07) (   0.91,-141.27)  478.08                80
 06/16/2020   10:30:24   (  -0.00,-137.05) (  -0.07,-136.73)   36.67                80
 06/18/2020   22:33:35   (   0.00,-137.00) (  -0.11,-137.50)   56.30                80
 06/19/2020   22:17:29   (  -0.00,-136.98) (   0.88,-132.96)  457.92                80