Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2019 4 16.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 04/18/2019   14:33:08   ( -80.20, 102.26) 04/18/2019   14:31:53  ( -80.19, 102.16)    2.39                75
 04/18/2019   15:23:53   (  80.20, -90.39) 04/18/2019   15:22:58  (  80.20, -90.43)    0.84                55
 04/18/2019   16:14:37   ( -80.19,  76.95) 04/18/2019   16:13:53  ( -80.21,  76.95)    1.21                44
 04/18/2019   17:05:23   (  80.22,-116.02) 04/18/2019   17:04:59  (  80.20,-115.97)    2.72                24
 04/18/2019   17:56:07   ( -80.22,  51.32) 04/18/2019   17:55:54  ( -80.20,  51.41)    2.38                13
 04/18/2019   18:46:52   (  80.21,-141.33) 04/18/2019   18:46:59  (  80.21,-141.18)    2.96                 7
 04/18/2019   19:37:36   ( -80.21,  26.00) 04/18/2019   19:37:55  ( -80.20,  25.88)    2.64                19
 04/18/2019   20:28:21   (  80.21,-166.65) 04/18/2019   20:29:00  (  80.21,-166.71)    1.22                39
 04/18/2019   21:19:05   ( -80.21,   0.68) 04/18/2019   21:19:55  ( -80.22,   0.67)    1.39                50
 04/18/2019   22:09:51   (  80.23, 167.72) 04/18/2019   22:11:01  (  80.21, 167.75)    2.45                70