Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 6 20.  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)
 06/20/2021   19:37:03   (  51.94,-101.12) 06/20/2021   19:37:39  (  51.94,-101.12)    0.20                36
 06/20/2021   20:26:40   ( -48.25,  67.89) 06/20/2021   20:26:01  ( -48.28,  68.09)   15.36                39
 06/23/2021   11:53:49   (  53.50,  14.05) 06/23/2021   11:54:34  (  53.50,  14.03)    0.98                45
 06/23/2021   12:42:49   ( -47.68,-175.93) 06/23/2021   12:42:20  ( -47.71,-175.80)   10.11                29
 06/26/2021   04:10:32   (  54.94, 129.22) 06/26/2021   04:11:26  (  54.95, 129.19)    1.77                54
 06/26/2021   04:58:57   ( -47.11, -59.76) 06/26/2021   04:58:38  ( -47.15, -59.70)    5.42                19
 06/28/2021   20:27:39   (  57.68,-116.45) 06/28/2021   20:28:41  (  57.68,-116.42)    1.64                62
 06/28/2021   21:15:15   ( -47.06,  56.21) 06/28/2021   21:15:05  ( -47.06,  56.21)    0.48                10
 07/01/2021   12:44:18   (  58.83,  -1.25) 07/01/2021   12:45:29  (  58.83,  -1.24)    0.86                71
 07/01/2021   13:32:22   ( -49.83, 170.97) 07/01/2021   13:32:20  ( -49.82, 170.99)    1.67                 2
 07/04/2021   05:05:23   (  74.26,  95.16) 07/04/2021   05:06:36  (  74.42,  96.23)   36.89                73
 07/04/2021   05:48:58   ( -50.81, -73.54) 07/04/2021   05:49:05  ( -50.81, -73.55)    0.78                 7