Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 1 14.  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)
 01/24/2018   18:19:27   (  80.61,-143.87) 01/24/2018   18:20:37  (  80.64,-141.77)   38.24                70
 01/24/2018   19:10:28   ( -80.68,  25.27) 01/24/2018   19:11:23  ( -80.67,  25.12)    3.29                55
 01/24/2018   20:01:23   (  80.68,-167.49) 01/24/2018   20:02:08  (  80.67,-167.54)    1.95                45
 01/24/2018   20:52:30   ( -80.67,  -0.47) 01/24/2018   20:52:53  ( -80.67,  -0.31)    3.00                23
 01/24/2018   21:43:25   (  80.67, 166.76) 01/24/2018   21:43:39  (  80.69, 166.69)    2.30                14
 01/24/2018   22:34:31   ( -80.68, -25.86) 01/24/2018   22:34:23  ( -80.67, -25.73)    2.40                 8
 01/24/2018   23:25:26   (  80.68, 141.37) 01/24/2018   23:25:09  (  80.69, 141.27)    2.58                17
 01/25/2018   00:16:32   ( -80.68, -51.25) 01/25/2018   00:15:53  ( -80.68, -51.15)    1.83                39
 01/25/2018   01:07:27   (  80.68, 115.98) 01/25/2018   01:06:39  (  80.70, 115.84)    2.98                48