Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 11 26.  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)
 11/30/2017   23:05:23   ( -80.69, -35.19) 11/30/2017   23:06:38  ( -80.75, -34.83)    9.13                75
 11/30/2017   23:56:26   (  80.72, 132.97) 11/30/2017   23:57:21  (  80.71, 133.13)    3.32                55
 12/01/2017   00:47:22   ( -80.72, -59.84) 12/01/2017   00:48:07  ( -80.73, -59.90)    1.51                45
 12/01/2017   01:38:27   (  80.73, 107.60) 12/01/2017   01:38:51  (  80.71, 107.71)    2.69                24
 12/01/2017   02:29:23   ( -80.73, -85.21) 12/01/2017   02:29:37  ( -80.73, -85.32)    2.16                14
 12/01/2017   03:20:29   (  80.72,  81.87) 12/01/2017   03:20:22  (  80.74,  81.95)    2.15                 7
 12/01/2017   04:11:24   ( -80.73,-110.57) 12/01/2017   04:11:07  ( -80.74,-110.74)    2.98                17
 12/01/2017   05:02:30   (  80.73,  56.51) 12/01/2017   05:01:52  (  80.74,  56.53)    1.50                38
 12/01/2017   05:53:25   ( -80.73,-135.94) 12/01/2017   05:52:36  ( -80.72,-135.81)    3.02                49