Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2021 2 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/18/2021   22:39:55   (   0.04,-137.21) (  -0.35,-139.10)  215.77                80
 02/19/2021   22:23:49   (   0.04,-137.20) (   0.62,-134.56)  299.97                80
 02/21/2021   10:45:37   (  -0.04,-137.18) (   0.53,-139.84)  302.18                80
 02/22/2021   10:24:12   (  -0.03,-137.17) (  -0.44,-135.30)  212.98                80
 02/23/2021   22:46:08   (   0.02,-137.15) (  -0.73,-140.61)  393.55                80
 02/24/2021   22:30:03   (   0.01,-137.13) (   0.25,-136.07)  121.37                80
 02/26/2021   10:51:50   (  -0.00,-137.11) (   0.96,-141.33)  481.77                80
 02/27/2021   10:30:26   (  -0.00,-137.09) (  -0.07,-136.80)   32.54                80
 03/01/2021   22:33:37   (   0.01,-137.03) (  -0.12,-137.57)   61.32                80
 03/02/2021   22:17:32   (   0.01,-137.01) (   0.92,-133.04)  452.54                80