Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 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)
 10/24/2020   22:34:03   (  -0.02,-137.20) (  -0.11,-137.57)   42.07                80
 10/25/2020   22:17:59   (  -0.02,-137.20) (   0.94,-133.04)  474.72                80
 10/27/2020   10:37:05   (   0.02,-137.22) (   0.29,-138.30)  124.50                80
 10/28/2020   10:21:01   (   0.02,-137.22) (  -0.76,-133.78)  392.23                80
 10/29/2020   22:40:16   (  -0.01,-137.21) (  -0.43,-139.08)  213.31                80
 10/30/2020   22:24:11   (  -0.02,-137.21) (   0.57,-134.54)  303.06                80
 11/01/2020   10:43:18   (   0.01,-137.21) (   0.60,-139.82)  297.07                80
 11/02/2020   10:27:12   (   0.02,-137.21) (  -0.40,-135.28)  218.83                80
 11/03/2020   22:46:28   (  -0.01,-137.18) (  -0.79,-140.58)  388.11                80
 11/04/2020   22:30:23   (  -0.01,-137.17) (   0.26,-136.06)  127.19                80