Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 6 10.  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)
 06/14/2020   12:43:04   ( -79.38, 137.09) 06/14/2020   12:41:59  ( -79.36, 136.99)    3.47                65
 06/14/2020   13:33:49   (  79.39, -55.63) 06/14/2020   13:32:57  (  79.38, -55.55)    1.72                52
 06/14/2020   14:24:33   ( -79.38, 111.74) 06/14/2020   14:23:59  ( -79.37, 111.65)    1.79                34
 06/14/2020   15:15:18   (  79.38, -80.98) 06/14/2020   15:14:57  (  79.40, -80.89)    2.40                21
 06/14/2020   16:06:02   ( -79.38,  86.39) 06/14/2020   16:05:59  ( -79.39,  86.32)    2.13                 3
 06/14/2020   16:56:47   (  79.38,-106.33) 06/14/2020   16:56:58  (  79.38,-106.50)    3.50                11
 06/14/2020   17:47:32   ( -79.41,  60.77) 06/14/2020   17:48:00  ( -79.38,  60.71)    3.28                28
 06/14/2020   18:38:17   (  79.41,-131.95) 06/14/2020   18:38:58  (  79.40,-131.84)    2.64                41
 06/14/2020   19:29:01   ( -79.41,  35.41) 06/14/2020   19:30:00  ( -79.40,  35.38)    1.14                59