Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2022 3 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/22/2022   21:56:14   (  -0.09,-128.21) (  -0.03,-128.08)   16.53                80
 03/25/2022   10:01:57   (   0.09,-128.26) (   0.20,-128.81)   62.62                80
 03/26/2022   09:40:32   (   0.10,-128.28) (  -0.77,-124.27)  456.08                80
 03/27/2022   22:02:28   (  -0.10,-128.32) (  -0.40,-129.58)  143.58                80
 03/28/2022   21:46:23   (  -0.10,-128.34) (   0.63,-125.05)  375.23                80
 03/30/2022   10:08:11   (   0.11,-128.37) (   0.56,-130.32)  222.80                80
 03/31/2022   09:46:46   (   0.11,-128.39) (  -0.47,-125.79)  295.82                80
 04/01/2022   22:08:42   (  -0.11,-128.43) (  -0.70,-131.10)  304.22                80
 04/02/2022   21:52:38   (  -0.11,-128.45) (   0.34,-126.57)  214.41                80
 04/04/2022   10:14:25   (   0.11,-128.47) (   0.85,-131.84)  383.92                80