Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2019 9 18.  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)
 09/29/2019   01:48:21   (  79.91, 116.13) 09/29/2019   01:47:14  (  79.93, 116.23)    2.36                67
 09/29/2019   02:39:05   ( -79.91, -76.50) 09/29/2019   02:38:15  ( -79.93, -76.47)    2.51                50
 09/29/2019   03:29:50   (  79.91,  90.80) 09/29/2019   03:29:15  (  79.92,  90.65)    3.13                35
 09/29/2019   04:20:35   ( -79.93,-102.12) 09/29/2019   04:20:16  ( -79.92,-102.04)    1.89                19
 09/29/2019   05:11:20   (  79.93,  65.17) 09/29/2019   05:11:16  (  79.91,  65.07)    3.20                 4
 09/29/2019   06:02:04   ( -79.93,-127.45) 09/29/2019   06:02:16  ( -79.94,-127.31)    3.16                12
 09/29/2019   06:52:49   (  79.93,  39.84) 09/29/2019   06:53:16  (  79.93,  39.80)    0.88                27
 09/29/2019   07:43:33   ( -79.92,-152.78) 09/29/2019   07:44:17  ( -79.94,-152.88)    2.31                44
 09/29/2019   08:34:18   (  79.93,  14.51) 09/29/2019   08:35:16  (  79.95,  14.53)    2.51                58