Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 6 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)
 06/15/2021   10:27:35   ( -75.25,  83.28) 06/15/2021   10:28:48  ( -75.69,  80.88)   82.91                73
 06/15/2021   11:03:22   (  48.28,  28.66) 06/15/2021   11:03:40  (  48.27,  28.68)    1.22                18
 06/15/2021   11:54:23   ( -49.41,-164.50) 06/15/2021   11:53:24  ( -49.45,-164.15)   25.70                59
 06/18/2021   03:20:12   (  50.07, 143.82) 06/18/2021   03:20:39  (  50.06, 143.82)    0.30                27
 06/18/2021   04:10:32   ( -48.84, -48.31) 06/18/2021   04:09:43  ( -48.87, -48.03)   20.62                49
 06/20/2021   19:36:59   (  51.74,-101.02) 06/20/2021   19:37:35  (  51.74,-101.03)    0.71                36
 06/20/2021   20:26:40   ( -48.26,  67.88) 06/20/2021   20:26:01  ( -48.30,  68.08)   15.43                39
 06/23/2021   11:53:43   (  53.17,  14.21) 06/23/2021   11:54:28  (  53.18,  14.19)    1.79                45
 06/23/2021   12:42:49   ( -47.69,-175.94) 06/23/2021   12:42:20  ( -47.73,-175.81)   10.34                29
 06/26/2021   04:10:50   (  55.92, 128.66) 06/26/2021   04:11:43  (  55.92, 128.68)    1.10                53