Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 11 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/14/2019   22:02:23   (  -0.09,-128.50) (  -0.36,-129.62)  127.92                80
 11/15/2019   21:46:17   (  -0.10,-128.49) (   0.63,-125.08)  388.53                80
 11/17/2019   10:05:26   (   0.08,-128.53) (   0.47,-130.36)  209.02                80
 11/18/2019   09:49:20   (   0.09,-128.52) (  -0.52,-125.83)  306.84                80
 11/19/2019   22:08:35   (  -0.06,-128.46) (  -0.68,-131.13)  304.43                80
 11/20/2019   21:52:31   (  -0.07,-128.45) (   0.37,-126.60)  211.37                80
 11/22/2019   10:11:38   (   0.05,-128.48) (   0.79,-131.88)  386.59                80
 11/23/2019   09:55:33   (   0.06,-128.47) (  -0.20,-127.34)  128.97                80
 11/24/2019   22:14:48   (  -0.04,-128.41) (  -1.00,-132.64)  482.95                80
 11/25/2019   21:58:43   (  -0.05,-128.39) (  -0.01,-128.10)   32.48                80