Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 6 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/03/2020   22:14:55   (   0.00,-137.19) (   0.96,-133.01)  477.55                80
 06/05/2020   10:39:23   (  -0.00,-137.19) (   0.22,-138.27)  123.30                80
 06/06/2020   10:17:57   (  -0.01,-137.18) (  -0.76,-133.73)  392.45                80
 06/07/2020   22:39:54   (   0.01,-137.17) (  -0.40,-139.04)  213.26                80
 06/08/2020   22:23:48   (   0.01,-137.16) (   0.58,-134.50)  302.39                80
 06/10/2020   10:45:35   (  -0.01,-137.14) (   0.61,-139.76)  299.13                80
 06/11/2020   10:24:11   (  -0.01,-137.13) (  -0.43,-135.24)  216.31                80
 06/12/2020   22:46:06   (   0.00,-137.11) (  -0.78,-140.53)  389.98                80
 06/13/2020   22:30:02   (   0.00,-137.10) (   0.26,-136.00)  125.36                80
 06/15/2020   10:51:49   (  -0.00,-137.08) (   0.93,-141.27)  476.61                80
 06/16/2020   10:30:24   (  -0.00,-137.07) (  -0.05,-136.73)   38.45                80