Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 7 14.  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)
 07/17/2017   05:18:59   ( -80.82,-129.48) 07/17/2017   05:20:11  ( -80.81,-129.64)    2.87                72
 07/17/2017   06:10:05   (  80.82,  37.74) 07/17/2017   06:10:56  (  80.81,  37.66)    1.56                51
 07/17/2017   07:01:01   ( -80.81,-155.15) 07/17/2017   07:01:41  ( -80.81,-155.06)    1.66                40
 07/17/2017   07:52:07   (  80.81,  12.07) 07/17/2017   07:52:26  (  80.81,  12.24)    2.97                19
 07/17/2017   08:43:02   ( -80.82, 179.55) 07/17/2017   08:43:11  ( -80.82, 179.53)    0.39                 9
 07/17/2017   09:34:08   (  80.82, -13.23) 07/17/2017   09:33:56  (  80.82, -13.18)    0.92                12
 07/17/2017   10:25:03   ( -80.82, 154.25) 07/17/2017   10:24:41  ( -80.82, 154.11)    2.42                22
 07/17/2017   11:16:09   (  80.82, -38.53) 07/17/2017   11:15:26  (  80.82, -38.59)    1.19                43
 07/17/2017   12:07:05   ( -80.82, 128.58) 07/17/2017   12:06:11  ( -80.82, 128.70)    2.12                54