Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 12 1.  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)
 12/01/2017   05:53:26   ( -80.73,-136.16) 12/01/2017   05:52:37  ( -80.73,-136.03)    2.34                49
 12/01/2017   06:44:31   (  80.73,  31.30) 12/01/2017   06:43:22  (  80.73,  31.26)    0.75                69
 12/14/2017   16:06:45   (  80.71,-109.66) 12/14/2017   16:07:50  (  80.71,-109.56)    1.83                65
 12/14/2017   16:57:43   ( -80.71,  57.65) 12/14/2017   16:58:35  ( -80.71,  57.82)    3.10                52
 12/14/2017   17:48:46   (  80.71,-135.03) 12/14/2017   17:49:20  (  80.71,-134.98)    1.02                34
 12/14/2017   18:39:44   ( -80.71,  32.28) 12/14/2017   18:40:05  ( -80.71,  32.40)    2.24                21
 12/14/2017   19:30:47   (  80.72,-160.40) 12/14/2017   19:30:50  (  80.72,-160.40)    0.24                 3
 12/14/2017   20:21:45   ( -80.72,   6.91) 12/14/2017   20:21:35  ( -80.71,   6.98)    1.43                10
 12/14/2017   21:12:48   (  80.72, 174.22) 12/14/2017   21:12:20  (  80.72, 174.18)    0.65                28
 12/14/2017   22:03:46   ( -80.72, -18.46) 12/14/2017   22:03:05  ( -80.72, -18.44)    0.83                41
 12/14/2017   22:54:49   (  80.72, 148.85) 12/14/2017   22:53:50  (  80.72, 148.77)    1.46                59