Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 7 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/29/2019   22:30:49   (   0.03,-137.20) (   0.25,-136.12)  122.49                80
 07/31/2019   10:52:37   (  -0.03,-137.19) (   0.90,-141.39)  478.76                80
 08/01/2019   10:33:52   (  -0.03,-137.18) (  -0.12,-136.86)   36.75                80
 08/03/2019   22:34:24   (   0.04,-137.16) (  -0.09,-137.63)   54.40                80
 08/04/2019   22:18:20   (   0.04,-137.15) (   0.92,-133.10)  460.96                80
 08/06/2019   10:37:28   (  -0.04,-137.13) (   0.23,-138.37)  141.14                80
 08/07/2019   10:21:24   (  -0.04,-137.12) (  -0.79,-133.84)  373.82                80
 08/08/2019   22:40:40   (   0.05,-137.09) (  -0.43,-139.14)  233.72                80
 08/09/2019   22:24:35   (   0.05,-137.07) (   0.59,-134.61)  280.88                80
 08/11/2019   10:43:44   (  -0.05,-137.05) (   0.56,-139.88)  322.34                80
 08/12/2019   10:27:39   (  -0.06,-137.03) (  -0.45,-135.35)  191.87                80