Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 7 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/18/2019   22:34:21   (   0.03,-137.19) (  -0.07,-137.63)   50.93                80
 07/19/2019   22:18:17   (   0.03,-137.18) (   0.94,-133.10)  465.10                80
 07/21/2019   10:40:05   (  -0.03,-137.19) (   0.22,-138.38)  134.69                80
 07/22/2019   10:18:41   (  -0.03,-137.18) (  -0.79,-133.84)  380.97                80
 07/23/2019   22:40:37   (   0.03,-137.15) (  -0.43,-139.14)  226.77                80
 07/24/2019   22:24:33   (   0.03,-137.15) (   0.58,-134.61)  288.65                80
 07/26/2019   10:46:21   (  -0.04,-137.14) (   0.57,-139.88)  312.10                80
 07/27/2019   10:27:36   (  -0.04,-137.13) (  -0.44,-135.35)  202.60                80
 07/28/2019   22:46:53   (   0.04,-137.08) (  -0.78,-140.65)  407.11                80
 07/29/2019   22:30:48   (   0.04,-137.06) (   0.24,-136.12)  107.14                80
 07/31/2019   10:49:56   (  -0.05,-137.05) (   0.92,-141.39)  495.17                80