Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 11 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/23/2019   22:36:46   (   0.00,-137.23) (  -0.09,-137.60)   41.99                80
 11/24/2019   22:15:20   (   0.00,-137.24) (   0.91,-133.06)  475.03                80
 11/26/2019   10:39:48   (   0.00,-137.24) (   0.24,-138.34)  124.59                80
 11/27/2019   10:21:02   (   0.01,-137.24) (  -0.75,-133.80)  392.08                80
 11/28/2019   22:40:18   (  -0.01,-137.24) (  -0.46,-139.10)  212.71                80
 11/29/2019   22:24:13   (  -0.02,-137.24) (   0.60,-134.58)  303.67                80
 12/01/2019   10:45:59   (   0.02,-137.23) (   0.61,-139.84)  296.90                80
 12/02/2019   10:24:34   (   0.02,-137.23) (  -0.39,-135.30)  219.15                80
 12/03/2019   22:49:10   (  -0.02,-137.22) (  -0.76,-140.62)  386.43                80
 12/04/2019   22:27:45   (  -0.02,-137.21) (   0.24,-136.08)  129.42                80
 12/06/2019   10:52:11   (   0.03,-137.20) (   0.96,-141.34)  471.81                80
 12/07/2019   10:30:46   (   0.03,-137.19) (  -0.03,-136.81)   43.79                80