Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 5 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)
 05/18/2020   03:36:30   (  79.21,  94.98) 05/18/2020   03:35:25  (  79.20,  91.19)   78.77                65
 05/18/2020   04:27:20   ( -79.42, -99.35) 05/18/2020   04:26:13  ( -79.44, -99.36)    2.40                67
 05/18/2020   05:18:06   (  79.44,  67.77) 05/18/2020   05:17:18  (  79.43,  67.79)    1.20                48
 05/18/2020   06:08:50   ( -79.45,-124.96) 05/18/2020   06:08:14  ( -79.43,-124.96)    2.24                36
 05/18/2020   06:59:35   (  79.44,  42.42) 05/18/2020   06:59:18  (  79.45,  42.47)    1.44                17
 05/18/2020   07:50:19   ( -79.45,-150.32) 05/18/2020   07:50:14  ( -79.45,-150.29)    0.54                 5
 05/18/2020   08:41:04   (  79.44,  17.07) 05/18/2020   08:41:18  (  79.47,  17.14)    3.67                14
 05/18/2020   09:31:48   ( -79.45,-175.67) 05/18/2020   09:32:14  ( -79.47,-175.61)    2.56                26
 05/18/2020   10:22:34   (  79.47,  -8.55) 05/18/2020   10:23:19  (  79.46,  -8.47)    2.11                45
 05/18/2020   11:13:18   ( -79.48, 158.71) 05/18/2020   11:14:15  ( -79.46, 158.78)    2.65                57
 05/18/2020   12:04:06   (  79.57, -34.72) 05/18/2020   12:05:17  (  79.53, -33.22)   30.45                71