Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 1 15.  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   18:19:26   (  80.62,-143.60) 01/24/2018   18:20:37  (  80.65,-141.86)   31.70                71
 01/24/2018   19:10:28   ( -80.68,  25.19) 01/24/2018   19:11:23  ( -80.67,  25.03)    3.00                55
 01/24/2018   20:01:23   (  80.68,-167.57) 01/24/2018   20:02:08  (  80.67,-167.62)    1.25                45
 01/24/2018   20:52:30   ( -80.67,  -0.55) 01/24/2018   20:52:53  ( -80.68,  -0.40)    2.91                23
 01/24/2018   21:43:24   (  80.68, 167.04) 01/24/2018   21:43:38  (  80.67, 166.95)    1.82                14
 01/24/2018   22:34:31   ( -80.68, -25.94) 01/24/2018   22:34:23  ( -80.68, -25.82)    2.27                 8
 01/24/2018   23:25:25   (  80.69, 141.65) 01/24/2018   23:25:08  (  80.68, 141.53)    2.42                17
 01/25/2018   00:16:32   ( -80.68, -51.33) 01/25/2018   00:15:53  ( -80.68, -51.24)    1.62                39
 01/25/2018   01:07:26   (  80.69, 116.26) 01/25/2018   01:06:38  (  80.68, 116.10)    3.04                48