Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 12 7.  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)
 12/14/2017   16:06:45   (  80.71,-109.65) 12/14/2017   16:07:51  (  80.72,-109.63)    1.26                66
 12/14/2017   16:57:43   ( -80.71,  57.62) 12/14/2017   16:58:36  ( -80.71,  57.75)    2.38                53
 12/14/2017   17:48:46   (  80.71,-135.03) 12/14/2017   17:49:21  (  80.72,-135.04)    0.94                35
 12/14/2017   18:39:44   ( -80.71,  32.25) 12/14/2017   18:40:06  ( -80.71,  32.33)    1.54                22
 12/14/2017   19:30:47   (  80.72,-160.40) 12/14/2017   19:30:51  (  80.72,-160.45)    1.16                 4
 12/14/2017   20:21:45   ( -80.72,   6.88) 12/14/2017   20:21:36  ( -80.72,   6.92)    0.71                 9
 12/14/2017   21:12:48   (  80.72, 174.22) 12/14/2017   21:12:21  (  80.72, 174.13)    1.71                27
 12/14/2017   22:03:46   ( -80.72, -18.49) 12/14/2017   22:03:06  ( -80.72, -18.49)    0.14                40
 12/14/2017   22:54:49   (  80.72, 148.85) 12/14/2017   22:53:51  (  80.73, 148.72)    2.38                58