Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 7 30.  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)
 07/30/2017   22:20:58   (  80.80, 155.00) 07/30/2017   22:21:40  (  80.80, 155.17)    3.11                42
 07/30/2017   23:11:54   ( -80.81, -37.62) 07/30/2017   23:12:25  ( -80.80, -37.51)    1.93                31
 07/31/2017   00:02:59   (  80.81, 129.69) 07/31/2017   00:03:10  (  80.80, 129.78)    1.84                11
 07/31/2017   00:53:55   ( -80.81, -62.93) 07/31/2017   00:53:55  ( -80.80, -62.90)    1.10                 0
 07/31/2017   01:45:00   (  80.81, 104.38) 07/31/2017   01:44:40  (  80.80, 104.40)    1.20                20
 07/31/2017   02:35:56   ( -80.82, -88.23) 07/31/2017   02:35:25  ( -80.80, -88.29)    1.81                31
 07/31/2017   03:27:02   (  80.81,  78.70) 07/31/2017   03:26:11  (  80.82,  78.66)    1.77                51
 07/31/2017   04:17:58   ( -80.81,-113.90) 07/31/2017   04:16:56  ( -80.82,-114.03)    2.46                62
 08/13/2017   12:49:44   (  80.79, -62.13) 08/13/2017   12:50:56  (  80.81, -62.21)    1.99                72
 08/13/2017   13:40:43   ( -80.80, 105.25) 08/13/2017   13:41:41  ( -80.80, 105.20)    0.96                58
 08/13/2017   14:31:45   (  80.80, -87.45) 08/13/2017   14:32:26  (  80.81, -87.60)    2.80                41
 08/13/2017   15:22:44   ( -80.80,  79.94) 08/13/2017   15:23:11  ( -80.80,  79.82)    2.24                27
 08/13/2017   16:13:46   (  80.80,-112.77) 08/13/2017   16:13:55  (  80.79,-112.64)    2.93                 9
 08/13/2017   17:04:46   ( -80.80,  54.27) 08/13/2017   17:04:41  ( -80.80,  54.43)    2.90                 5
 08/13/2017   17:55:48   (  80.80,-138.45) 08/13/2017   17:55:26  (  80.81,-138.38)    1.67                22
 08/13/2017   18:46:47   ( -80.80,  28.95) 08/13/2017   18:46:11  ( -80.80,  29.04)    1.52                36
 08/13/2017   19:37:49   (  80.80,-163.77) 08/13/2017   19:36:56  (  80.81,-163.76)    0.52                53