Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 5 5.  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)
 05/10/2017   04:03:01   (  80.85,  68.74) 05/10/2017   04:04:12  (  80.84,  68.89)    3.09                71
 05/10/2017   04:54:07   ( -80.85,-123.95) 05/10/2017   04:54:57  ( -80.84,-123.87)    2.06                50
 05/10/2017   05:45:03   (  80.85,  43.10) 05/10/2017   05:45:43  (  80.86,  43.12)    1.04                40
 05/10/2017   06:36:09   ( -80.85,-149.59) 05/10/2017   06:36:28  ( -80.86,-149.63)    1.31                19
 05/10/2017   07:27:04   (  80.85,  17.82) 05/10/2017   07:27:13  (  80.86,  17.71)    1.94                 9
 05/10/2017   08:18:10   ( -80.86,-174.86) 05/10/2017   08:17:58  ( -80.86,-175.04)    3.19                12
 05/10/2017   09:09:06   (  80.85,  -7.82) 05/10/2017   09:08:43  (  80.86,  -7.69)    2.53                23
 05/10/2017   10:00:12   ( -80.85, 159.50) 05/10/2017   09:59:28  ( -80.86, 159.56)    1.53                44
 05/10/2017   10:51:07   (  80.86, -33.10) 05/10/2017   10:50:13  (  80.86, -33.10)    0.64                54