Simultaneous Nadir Overpasses (SNOs) between GOES-14 and NPP
TLE Epoch: 2019 6 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)
 06/20/2019   08:36:36   (  -0.07,-104.51) (   0.74,-108.12)  411.94                80
 06/21/2019   08:20:31   (  -0.06,-104.51) (  -0.26,-103.59)  105.45                80
 06/22/2019   20:39:50   (   0.09,-104.68) (  -0.84,-108.91)  482.05                80
 06/23/2019   20:23:45   (   0.07,-104.68) (   0.16,-104.38)   35.34                80
 06/26/2019   08:24:09   (  -0.08,-104.54) (   0.02,-105.11)   64.40                80
 06/27/2019   08:08:05   (  -0.07,-104.55) (  -0.99,-100.58)  453.17                80
 06/28/2019   20:27:22   (   0.10,-104.72) (  -0.17,-105.89)  134.21                80
 06/29/2019   20:11:17   (   0.09,-104.72) (   0.83,-101.36)  382.92                80
 07/01/2019   08:30:26   (  -0.13,-104.57) (   0.35,-106.63)  235.00                80
 07/02/2019   08:14:21   (  -0.11,-104.57) (  -0.66,-102.10)  282.03                80