Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 8 31.  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)
 09/09/2017   21:11:12   (  80.77, 172.78) 09/09/2017   21:12:25  (  80.78, 172.86)    1.77                73
 09/09/2017   22:02:17   ( -80.78, -19.74) 09/09/2017   22:03:10  ( -80.78, -19.84)    1.77                53
 09/09/2017   22:53:13   (  80.78, 147.45) 09/09/2017   22:53:55  (  80.78, 147.47)    0.59                42
 09/09/2017   23:44:18   ( -80.79, -45.07) 09/09/2017   23:44:40  ( -80.78, -45.23)    2.98                22
 09/10/2017   00:35:14   (  80.78, 122.12) 09/10/2017   00:35:25  (  80.78, 122.07)    0.85                11
 09/10/2017   01:26:20   ( -80.78, -70.75) 09/10/2017   01:26:10  ( -80.78, -70.63)    2.31                10
 09/10/2017   02:17:15   (  80.79,  96.79) 09/10/2017   02:16:55  (  80.78,  96.68)    2.06                20
 09/10/2017   03:08:21   ( -80.79, -96.08) 09/10/2017   03:07:40  ( -80.78, -96.02)    1.07                41
 09/10/2017   03:59:16   (  80.79,  71.47) 09/10/2017   03:58:25  (  80.79,  71.29)    3.31                51