Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2023 4 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/08/2023   09:55:17   (   0.16,-130.17) (  -0.45,-127.33)  323.14                80
 04/09/2023   22:19:57   (  -0.15,-130.89) (  -0.58,-132.66)  202.74                80
 04/10/2023   21:58:36   (  -0.16,-131.38) (   0.58,-128.17)  367.39                80
 04/12/2023   10:23:07   (   0.15,-132.17) (   0.44,-133.47)  147.28                80
 04/13/2023   10:01:45   (   0.16,-132.66) (  -0.67,-128.96)  422.25                80
 04/14/2023   22:26:25   (  -0.16,-133.37) (  -0.35,-134.30)  105.03                80
 04/15/2023   22:05:03   (  -0.17,-133.86) (   0.76,-129.79)  464.61                80
 04/17/2023   10:29:34   (   0.16,-134.64) (   0.25,-135.09)   50.43                80
 04/19/2023   22:32:52   (  -0.15,-135.84) (  -0.14,-135.92)    9.49                80