Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2018 11 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/03/2018   10:12:09   (   0.16,-131.37) (   0.31,-131.99)   71.79                80
 11/04/2018   09:56:01   (   0.17,-130.55) (  -0.53,-127.43)  355.58                80
 11/05/2018   22:15:14   (  -0.13,-129.42) (  -0.85,-132.69)  372.41                80
 11/06/2018   21:59:07   (  -0.14,-128.59) (  -0.01,-128.12)   54.05                80
 11/07/2018   21:40:18   (  -0.16,-127.76) (   0.77,-123.54)  480.33                80
 11/09/2018   09:59:22   (   0.13,-126.35) (   0.67,-128.76)  274.57                80
 11/10/2018   09:43:14   (   0.14,-125.52) (  -0.17,-124.19)  152.17                80
 11/12/2018   21:43:39   (  -0.11,-123.58) (  -0.43,-124.87)  148.44                80
 11/13/2018   21:27:32   (  -0.12,-122.74) (   0.41,-120.31)  277.23                80
 11/15/2018   09:46:35   (   0.09,-121.30) (   1.03,-125.52)  481.05                80
 11/16/2018   09:27:47   (   0.10,-120.47) (   0.19,-120.95)   54.54                80