Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 5 15.  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)
 05/28/2018   14:30:54   (  80.49, -84.75) 05/28/2018   14:32:05  (  80.52, -83.07)   31.07                71
 05/28/2018   15:21:56   ( -80.56,  83.92) 05/28/2018   15:22:51  ( -80.55,  83.86)    1.46                55
 05/28/2018   16:12:51   (  80.56,-108.81) 05/28/2018   16:13:36  (  80.55,-108.81)    1.14                45
 05/28/2018   17:03:57   ( -80.56,  58.48) 05/28/2018   17:04:21  ( -80.55,  58.46)    1.18                24
 05/28/2018   17:54:52   (  80.56,-134.25) 05/28/2018   17:55:06  (  80.55,-134.22)    1.33                14
 05/28/2018   18:45:58   ( -80.56,  33.04) 05/28/2018   18:45:51  ( -80.55,  33.05)    1.16                 7
 05/28/2018   19:36:53   (  80.56,-159.69) 05/28/2018   19:36:36  (  80.55,-159.63)    1.73                17
 05/28/2018   20:27:59   ( -80.57,   7.60) 05/28/2018   20:27:21  ( -80.56,   7.64)    1.41                38
 05/28/2018   21:18:54   (  80.57, 174.87) 05/28/2018   21:18:06  (  80.56, 174.97)    2.24                48
 05/28/2018   22:10:00   ( -80.57, -17.84) 05/28/2018   22:08:51  ( -80.56, -17.77)    1.82                69