Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 2 27.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/06/2018   22:13:41   (  80.64, 159.78) 03/06/2018   22:14:47  (  80.63, 159.78)    0.75                66
 03/06/2018   23:04:40   ( -80.64, -32.87) 03/06/2018   23:05:32  ( -80.64, -33.00)    2.27                52
 03/06/2018   23:55:42   (  80.64, 134.37) 03/06/2018   23:56:17  (  80.63, 134.35)    0.90                35
 03/07/2018   00:46:41   ( -80.64, -58.28) 03/07/2018   00:47:02  ( -80.64, -58.42)    2.62                21
 03/07/2018   01:37:43   (  80.64, 108.97) 03/07/2018   01:37:47  (  80.64, 108.92)    1.24                 4
 03/07/2018   02:28:42   ( -80.65, -83.69) 03/07/2018   02:28:32  ( -80.64, -83.85)    2.98                10
 03/07/2018   03:19:44   (  80.65,  83.57) 03/07/2018   03:19:17  (  80.64,  83.49)    1.65                27
 03/07/2018   04:10:44   ( -80.64,-109.45) 03/07/2018   04:10:02  ( -80.65,-109.28)    3.26                42
 03/07/2018   05:01:45   (  80.65,  58.16) 03/07/2018   05:00:47  (  80.64,  58.06)    2.08                58