Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 11 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/18/2019   09:49:19   (   0.09,-128.52) (  -0.49,-125.82)  307.24                80
 11/19/2019   22:08:36   (  -0.06,-128.47) (  -0.66,-131.13)  302.99                80
 11/20/2019   21:52:30   (  -0.07,-128.47) (   0.33,-126.59)  213.02                80
 11/22/2019   10:11:38   (   0.05,-128.49) (   0.82,-131.87)  385.25                80
 11/23/2019   09:55:32   (   0.06,-128.48) (  -0.17,-127.33)  130.57                80
 11/24/2019   22:14:48   (  -0.04,-128.43) (  -0.98,-132.64)  480.37                80
 11/25/2019   21:58:43   (  -0.05,-128.42) (   0.02,-128.11)   35.22                80
 11/28/2019   09:59:05   (   0.04,-128.42) (   0.14,-128.85)   48.38                80
 11/29/2019   09:42:59   (   0.05,-128.41) (  -0.86,-124.31)  466.65                80
 11/30/2019   22:02:15   (  -0.03,-128.34) (  -0.34,-129.61)  145.38                80