Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 4 13.  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)
 04/17/2018   06:22:30   ( -80.58,-142.13) 04/17/2018   06:23:37  ( -80.60,-142.03)    2.56                67
 04/17/2018   07:13:34   (  80.59,  25.18) 04/17/2018   07:14:22  (  80.60,  25.25)    2.00                48
 04/17/2018   08:04:31   ( -80.59,-167.56) 04/17/2018   08:05:07  ( -80.60,-167.43)    2.76                36
 04/17/2018   08:55:35   (  80.59,  -0.25) 04/17/2018   08:55:52  (  80.60,  -0.15)    2.20                17
 04/17/2018   09:46:32   ( -80.59, 167.02) 04/17/2018   09:46:37  ( -80.60, 167.17)    3.00                 5
 04/17/2018   10:37:36   (  80.59, -25.67) 04/17/2018   10:37:22  (  80.61, -25.56)    2.49                14
 04/17/2018   11:28:33   ( -80.59, 141.60) 04/17/2018   11:28:07  ( -80.60, 141.77)    3.28                26
 04/17/2018   12:19:37   (  80.60, -51.10) 04/17/2018   12:18:52  (  80.61, -50.96)    2.82                45
 04/17/2018   13:10:33   ( -80.61, 116.53) 04/17/2018   13:09:37  ( -80.61, 116.37)    2.97                56