Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 12 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/31/2020   10:20:36   (  -0.01,-137.22) (  -0.77,-133.76)  394.99                80
 01/01/2021   22:39:53   (   0.01,-137.22) (  -0.39,-139.07)  210.55                80
 01/02/2021   22:23:49   (   0.01,-137.21) (   0.63,-134.54)  305.27                80
 01/04/2021   10:42:56   (  -0.02,-137.21) (   0.58,-139.80)  296.36                80
 01/05/2021   10:24:11   (  -0.02,-137.20) (  -0.43,-135.27)  219.11                80
 01/06/2021   22:46:09   (   0.02,-137.18) (  -0.72,-140.59)  387.49                80
 01/07/2021   22:30:04   (   0.01,-137.17) (   0.29,-136.06)  127.81                80
 01/09/2021   10:49:12   (  -0.00,-137.16) (   0.92,-141.32)  474.55                80
 01/10/2021   10:33:07   (   0.01,-137.14) (  -0.09,-136.79)   40.26                80
 01/12/2021   22:33:39   (  -0.01,-137.09) (  -0.09,-137.56)   53.84                80
 01/13/2021   22:17:34   (  -0.01,-137.07) (   0.93,-133.04)  460.35                80