Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 11 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/03/2019   22:08:42   (  -0.13,-128.44) (  -0.71,-131.12)  305.52                80
 11/04/2019   21:52:37   (  -0.14,-128.45) (   0.28,-126.59)  212.18                80
 11/06/2019   10:11:44   (   0.11,-128.51) (   0.89,-131.86)  382.07                80
 11/07/2019   09:55:39   (   0.13,-128.52) (  -0.16,-127.34)  135.45                80
 11/08/2019   22:14:55   (  -0.10,-128.48) (  -1.05,-132.63)  474.30                80
 11/09/2019   21:58:50   (  -0.11,-128.48) (  -0.01,-128.11)   43.16                80
 11/12/2019   09:59:12   (   0.10,-128.54) (   0.18,-128.85)   34.59                80
 11/13/2019   09:43:07   (   0.12,-128.54) (  -0.81,-124.31)  482.19                80
 11/14/2019   22:02:23   (  -0.09,-128.49) (  -0.34,-129.62)  129.02                80
 11/15/2019   21:46:18   (  -0.10,-128.48) (   0.65,-125.09)  387.25                80
 11/17/2019   10:05:25   (   0.08,-128.53) (   0.51,-130.36)  209.25                80