Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 8 13.  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)
 08/13/2021   11:37:46   ( -60.23,-165.17) 08/13/2021   11:38:01  ( -60.24,-165.18)    0.54                15
 08/13/2021   12:26:17   (  52.57,   6.71) 08/13/2021   12:25:19  (  52.57,   6.73)    1.05                58
 08/16/2021   03:54:20   ( -61.11, -49.87) 08/16/2021   03:54:45  ( -61.12, -49.90)    1.74                25
 08/16/2021   04:42:51   (  53.47, 122.20) 08/16/2021   04:42:03  (  53.47, 122.18)    1.50                48
 08/18/2021   20:11:14   ( -63.10,  64.46) 08/18/2021   20:11:48  ( -63.09,  64.49)    1.52                34
 08/18/2021   20:59:49   (  55.73,-123.09) 08/18/2021   20:59:10  (  55.74,-123.09)    0.21                39
 08/21/2021   12:27:44   ( -63.75, 179.83) 08/21/2021   12:28:28  ( -63.75, 179.83)    0.05                44
 08/21/2021   13:16:42   (  57.71,  -8.32) 08/21/2021   13:16:12  (  57.70,  -8.31)    1.08                30
 08/24/2021   04:44:11   ( -64.28, -64.72) 08/24/2021   04:45:05  ( -64.29, -64.75)    1.77                54
 08/24/2021   05:33:07   (  58.15, 107.34) 08/24/2021   05:32:47  (  58.15, 107.31)    1.97                20
 08/26/2021   21:00:56   ( -65.76,  49.77) 08/26/2021   21:01:59  ( -65.75,  49.79)    1.06                63