Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 3 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-14)   GOES-14 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/19/2019   20:20:38   (  -0.09,-104.27) (  -0.10,-104.27)    0.88                80
 03/22/2019   08:23:39   (   0.09,-104.41) (   0.23,-105.01)   67.63                80
 03/23/2019   08:07:34   (   0.09,-104.42) (  -0.77,-100.47)  449.93                80
 03/24/2019   20:29:29   (  -0.10,-104.30) (  -0.43,-105.77)  166.90                80
 03/25/2019   20:08:04   (  -0.10,-104.30) (   0.58,-101.23)  349.70                80
 03/27/2019   08:29:51   (   0.10,-104.43) (   0.56,-106.50)  236.59                80
 03/28/2019   08:13:46   (   0.10,-104.44) (  -0.45,-101.97)  281.10                80
 03/29/2019   20:35:41   (  -0.11,-104.33) (  -0.75,-107.27)  333.89                80
 03/30/2019   20:14:15   (  -0.11,-104.33) (   0.26,-102.73)  182.82                80
 04/01/2019   08:36:02   (   0.11,-104.44) (   0.94,-107.99)  405.13                80