Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2019 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)
 01/18/2019   23:43:00   ( -80.28, -37.77) 01/18/2019   23:44:11  ( -80.27, -37.68)    1.97                71
 01/19/2019   00:33:59   (  80.28, 129.48) 01/19/2019   00:34:57  (  80.29, 129.34)    3.32                58
 01/19/2019   01:25:01   ( -80.28, -63.28) 01/19/2019   01:25:42  ( -80.30, -63.40)    3.43                41
 01/19/2019   02:16:00   (  80.27, 103.96) 01/19/2019   02:16:27  (  80.30, 103.93)    2.56                27
 01/19/2019   03:07:01   ( -80.29, -88.47) 01/19/2019   03:07:11  ( -80.28, -88.50)    2.23                10
 01/19/2019   03:58:00   (  80.29,  78.78) 01/19/2019   03:57:56  (  80.27,  78.83)    2.45                 4
 01/19/2019   04:49:02   ( -80.29,-113.98) 01/19/2019   04:48:41  ( -80.28,-113.91)    2.08                21
 01/19/2019   05:40:01   (  80.29,  53.26) 01/19/2019   05:39:27  (  80.30,  53.10)    3.23                34
 01/19/2019   06:31:03   ( -80.29,-139.49) 01/19/2019   06:30:11  ( -80.28,-139.33)    3.29                52
 01/19/2019   07:22:02   (  80.29,  27.74) 01/19/2019   07:20:57  (  80.31,  27.69)    1.94                65