Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 6 19.  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)
 06/19/2017   23:30:11   (  80.83, 137.36) 06/19/2017   23:31:24  (  80.83, 137.28)    1.63                73
 06/20/2017   00:21:12   ( -80.82, -55.65) 06/20/2017   00:22:09  ( -80.83, -55.57)    1.88                57
 06/20/2017   01:12:13   (  80.83, 111.71) 06/20/2017   01:12:54  (  80.83, 111.86)    2.70                41
 06/20/2017   02:03:13   ( -80.83, -80.94) 06/20/2017   02:03:39  ( -80.84, -80.98)    1.14                26
 06/20/2017   02:54:14   (  80.83,  86.42) 06/20/2017   02:54:24  (  80.83,  86.45)    0.49                10
 06/20/2017   03:45:14   ( -80.83,-106.24) 06/20/2017   03:45:09  ( -80.84,-106.40)    2.86                 5
 06/20/2017   04:36:15   (  80.84,  61.13) 06/20/2017   04:35:54  (  80.83,  61.03)    1.82                21
 06/20/2017   05:27:16   ( -80.83,-131.90) 06/20/2017   05:26:39  ( -80.84,-131.81)    1.97                37
 06/20/2017   06:18:17   (  80.83,  35.48) 06/20/2017   06:17:24  (  80.83,  35.62)    2.53                53
 06/20/2017   07:09:17   ( -80.83,-157.19) 06/20/2017   07:08:09  ( -80.84,-157.22)    0.94                68