Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2021 7 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/02/2021   08:27:03   (  -0.33,-104.15) (  -0.09,-105.19)  118.93                80
 08/03/2021   08:05:38   (  -0.31,-104.14) (  -1.08,-100.65)  397.32                80
 08/04/2021   20:27:38   (   0.35,-104.37) (   0.00,-105.98)  183.97                80
 08/05/2021   20:11:33   (   0.34,-104.37) (   0.99,-101.45)  333.06                80
 08/07/2021   08:33:22   (  -0.37,-104.16) (   0.21,-106.72)  291.51                80
 08/08/2021   08:11:57   (  -0.36,-104.15) (  -0.78,-102.18)  224.54                80
 08/09/2021   20:33:56   (   0.39,-104.36) (  -0.29,-107.51)  358.64                80
 08/10/2021   20:17:52   (   0.38,-104.37) (   0.70,-102.98)  158.62                80
 08/12/2021   08:39:40   (  -0.41,-104.18) (   0.50,-108.24)  463.48                80
 08/13/2021   08:18:16   (  -0.39,-104.17) (  -0.49,-103.71)   52.54                80