Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 2 5.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(AQUA) AQUA Lat/Lon    Distance(km)  Time Diff(sec)
 02/06/2021   17:18:54   (  46.71, 133.25) 02/06/2021   17:19:06  (  46.76, 132.89)   28.13                12
 02/06/2021   18:09:46   ( -46.46, -59.55) 02/06/2021   18:08:41  ( -46.45, -59.60)    4.26                65
 02/09/2021   09:35:04   (  47.27,-110.60) 02/09/2021   09:35:25  (  47.33,-111.01)   32.44                21
 02/09/2021   10:26:13   ( -46.04,  56.21) 02/09/2021   10:25:16  ( -46.08,  56.13)    7.23                57
 02/12/2021   01:51:16   (  47.76,   5.54) 02/12/2021   01:51:46  (  47.84,   5.06)   36.64                30
 02/12/2021   02:42:34   ( -46.02, 172.13) 02/12/2021   02:41:46  ( -46.05, 172.00)   10.52                48
 02/14/2021   18:07:27   (  48.31, 121.70) 02/14/2021   18:08:06  (  48.40, 121.17)   40.81                39
 02/14/2021   18:58:54   ( -46.05, -71.92) 02/14/2021   18:58:15  ( -46.07, -72.11)   14.29                39
 02/17/2021   10:23:39   (  48.79,-122.16) 02/17/2021   10:24:27  (  48.90,-122.75)   44.81                48
 02/17/2021   11:15:15   ( -46.03,  44.00) 02/17/2021   11:14:44  ( -46.09,  43.78)   18.12                31