Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 1 21.  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   (  80.60,-143.90) 01/24/2018   18:20:37  (  80.64,-141.78)   38.59                70
 01/24/2018   19:10:28   ( -80.68,  25.21) 01/24/2018   19:11:23  ( -80.67,  25.07)    2.80                55
 01/24/2018   20:01:23   (  80.68,-167.52) 01/24/2018   20:02:08  (  80.67,-167.54)    1.66                45
 01/24/2018   20:52:30   ( -80.67,  -0.53) 01/24/2018   20:52:53  ( -80.67,  -0.36)    3.19                23
 01/24/2018   21:43:24   (  80.68, 167.09) 01/24/2018   21:43:38  (  80.67, 167.03)    2.02                14
 01/24/2018   22:34:31   ( -80.68, -25.92) 01/24/2018   22:34:23  ( -80.68, -25.78)    2.56                 8
 01/24/2018   23:25:25   (  80.69, 141.70) 01/24/2018   23:25:08  (  80.67, 141.61)    2.49                17
 01/25/2018   00:16:32   ( -80.68, -51.31) 01/25/2018   00:15:53  ( -80.68, -51.20)    1.93                39
 01/25/2018   01:07:27   (  80.68, 115.95) 01/25/2018   01:06:39  (  80.70, 115.84)    2.84                48