Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 6 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)
 06/11/2018   09:13:42   ( -80.45, 174.24) 06/11/2018   09:14:50  ( -80.46, 177.16)   54.03                68
 06/11/2018   10:04:32   (  80.54, -16.75) 06/11/2018   10:05:39  (  80.54, -16.74)    0.89                67
 06/11/2018   10:55:38   ( -80.54, 150.50) 06/11/2018   10:56:24  ( -80.55, 150.44)    2.15                46
 06/11/2018   11:46:33   (  80.54, -42.19) 06/11/2018   11:47:09  (  80.55, -42.15)    1.13                36
 06/11/2018   12:37:39   ( -80.54, 125.05) 06/11/2018   12:37:54  ( -80.55, 125.03)    1.86                15
 06/11/2018   13:28:34   (  80.54, -67.64) 06/11/2018   13:28:39  (  80.55, -67.56)    1.63                 5
 06/11/2018   14:19:40   ( -80.54,  99.60) 06/11/2018   14:19:24  ( -80.56,  99.62)    1.81                16
 06/11/2018   15:10:35   (  80.54, -93.08) 06/11/2018   15:10:09  (  80.55, -92.97)    2.22                26
 06/11/2018   16:01:41   ( -80.54,  74.16) 06/11/2018   16:00:54  ( -80.56,  74.21)    2.03                47
 06/11/2018   16:52:36   (  80.55,-118.53) 06/11/2018   16:51:39  (  80.55,-118.38)    2.84                57