Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 5 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/26/2019   22:30:28   (  -0.02,-137.18) (   0.26,-136.09)  125.30                80
 05/28/2019   10:52:16   (   0.02,-137.20) (   0.94,-141.36)  473.89                80
 05/29/2019   10:30:52   (   0.02,-137.19) (  -0.06,-136.83)   41.60                80
 05/31/2019   22:34:05   (  -0.01,-137.15) (  -0.11,-137.60)   51.66                80
 06/01/2019   22:18:00   (   0.00,-137.14) (   0.89,-133.07)  463.06                80
 06/03/2019   10:39:49   (  -0.01,-137.14) (   0.25,-138.35)  137.89                80
 06/04/2019   10:18:25   (  -0.01,-137.12) (  -0.75,-133.82)  376.39                80
 06/05/2019   22:40:21   (   0.00,-137.06) (  -0.47,-139.11)  234.24                80
 06/06/2019   22:24:17   (  -0.00,-137.04) (   0.53,-134.58)  279.90                80
 06/08/2019   10:46:05   (   0.01,-137.03) (   0.66,-139.85)  321.79                80