Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 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)
 10/29/2020   22:40:16   (  -0.02,-137.21) (  -0.45,-139.07)  212.66                80
 10/30/2020   22:24:11   (  -0.02,-137.21) (   0.60,-134.55)  303.69                80
 11/01/2020   10:43:17   (   0.02,-137.21) (   0.62,-139.81)  297.24                80
 11/02/2020   10:27:13   (   0.02,-137.20) (  -0.44,-135.29)  218.59                80
 11/03/2020   22:46:28   (  -0.02,-137.18) (  -0.75,-140.59)  387.94                80
 11/04/2020   22:30:23   (  -0.02,-137.17) (   0.24,-136.05)  127.32                80
 11/06/2020   10:49:29   (   0.01,-137.15) (   0.97,-141.32)  475.21                80
 11/07/2020   10:33:25   (   0.01,-137.14) (  -0.08,-136.79)   39.55                80
 11/09/2020   22:33:54   (  -0.01,-137.08) (  -0.10,-137.56)   54.08                80
 11/10/2020   22:17:49   (  -0.01,-137.06) (   0.90,-133.03)  460.24                80
 11/12/2020   10:36:56   (   0.00,-137.04) (   0.26,-138.30)  143.44                80