Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2021 7 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/04/2021   10:52:19   (   0.03,-137.17) (   0.97,-141.37)  479.23                80
 07/05/2021   10:30:55   (   0.02,-137.16) (  -0.07,-136.85)   35.89                80
 07/07/2021   22:36:48   (  -0.01,-137.13) (  -0.15,-137.62)   56.00                80
 07/08/2021   22:15:25   (  -0.00,-137.12) (   0.89,-133.10)  458.47                80
 07/10/2021   10:39:54   (  -0.01,-137.09) (   0.27,-138.37)  145.63                80
 07/11/2021   10:18:29   (  -0.01,-137.07) (  -0.71,-133.84)  368.39                80
 07/12/2021   22:40:27   (   0.01,-137.05) (  -0.47,-139.14)  239.45                80
 07/13/2021   22:24:23   (   0.01,-137.02) (   0.57,-134.62)  274.44                80
 07/15/2021   10:46:12   (  -0.01,-136.99) (   0.65,-139.88)  330.30                80
 07/16/2021   10:24:48   (  -0.01,-136.96) (  -0.39,-135.36)  183.30                80