Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2021 3 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/25/2021   10:45:30   (  -0.03,-137.21) (   0.54,-139.81)  295.97                80
 03/26/2021   10:24:04   (  -0.03,-137.21) (  -0.44,-135.27)  220.76                80
 03/27/2021   22:48:41   (   0.03,-137.20) (  -0.72,-140.58)  384.13                80
 03/28/2021   22:29:55   (   0.03,-137.20) (   0.26,-136.04)  132.28                80
 03/30/2021   10:51:42   (  -0.03,-137.20) (   0.91,-141.30)  467.77                80
 03/31/2021   10:30:18   (  -0.03,-137.20) (  -0.14,-136.78)   48.05                80
 04/02/2021   22:33:29   (   0.03,-137.16) (  -0.03,-137.55)   43.17                80
 04/03/2021   22:17:23   (   0.03,-137.15) (   0.96,-133.01)  472.19                80
 04/05/2021   10:39:11   (  -0.02,-137.14) (   0.21,-138.28)  129.36                80
 04/06/2021   10:17:45   (  -0.02,-137.12) (  -0.78,-133.74)  385.72                80