Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 7 16.  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   ( -80.81,-129.63) 07/17/2017   05:20:11  ( -80.82,-129.78)    2.70                72
 07/17/2017   06:10:05   (  80.81,  37.61) 07/17/2017   06:10:56  (  80.82,  37.54)    1.48                51
 07/17/2017   07:01:00   ( -80.82,-154.93) 07/17/2017   07:01:40  ( -80.80,-154.84)    2.39                40
 07/17/2017   07:52:06   (  80.82,  12.31) 07/17/2017   07:52:26  (  80.82,  12.12)    3.34                20
 07/17/2017   08:43:02   ( -80.81, 179.40) 07/17/2017   08:43:11  ( -80.82, 179.39)    1.13                 9
 07/17/2017   09:34:08   (  80.81, -13.36) 07/17/2017   09:33:56  (  80.82, -13.30)    1.58                12
 07/17/2017   10:25:03   ( -80.82, 154.10) 07/17/2017   10:24:41  ( -80.82, 153.98)    2.25                22
 07/17/2017   11:16:09   (  80.82, -38.66) 07/17/2017   11:15:26  (  80.83, -38.71)    1.17                43
 07/17/2017   12:07:04   ( -80.82, 128.79) 07/17/2017   12:06:10  ( -80.81, 128.91)    2.72                54
 07/17/2017   12:58:10   (  80.82, -63.97) 07/17/2017   12:56:56  (  80.83, -64.13)    2.97                74
 07/30/2017   20:38:56   (  80.80,-179.60) 07/30/2017   20:39:56  (  80.81,-179.60)    1.30                60
 07/30/2017   21:29:52   ( -80.81, -12.13) 07/30/2017   21:30:41  ( -80.81, -12.19)    1.03                49
 07/30/2017   22:20:57   (  80.81, 155.09) 07/30/2017   22:21:26  (  80.82, 154.98)    2.10                29