Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 5 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/22/2020   22:42:37   (   0.01,-137.20) (  -0.40,-139.07)  212.62                80
 05/23/2020   22:21:13   (   0.01,-137.20) (   0.63,-134.54)  303.71                80
 05/25/2020   10:45:40   (  -0.01,-137.19) (   0.56,-139.80)  297.17                80
 05/26/2020   10:24:15   (  -0.01,-137.19) (  -0.41,-135.26)  218.61                80
 05/27/2020   22:46:11   (   0.01,-137.17) (  -0.75,-140.57)  387.13                80
 05/28/2020   22:30:07   (   0.01,-137.16) (   0.28,-136.04)  128.35                80
 05/30/2020   10:51:54   (  -0.00,-137.14) (   0.91,-141.30)  473.73                80
 05/31/2020   10:30:28   (  -0.00,-137.13) (  -0.07,-136.76)   41.46                80
 06/02/2020   22:33:39   (   0.00,-137.09) (  -0.12,-137.53)   50.52                80
 06/03/2020   22:17:35   (   0.00,-137.07) (   0.92,-133.00)  464.20                80