Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 8 12.  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   11:37:44   ( -60.12,-165.09) 08/13/2021   11:37:59  ( -60.12,-165.10)    0.75                15
 08/13/2021   12:26:15   (  52.46,   6.77) 08/13/2021   12:25:17  (  52.45,   6.78)    0.93                58
 08/16/2021   03:54:18   ( -61.00, -49.79) 08/16/2021   03:54:43  ( -61.00, -49.82)    2.08                25
 08/16/2021   04:42:49   (  53.35, 122.26) 08/16/2021   04:42:01  (  53.36, 122.23)    1.75                48
 08/18/2021   20:11:12   ( -62.98,  64.56) 08/18/2021   20:11:46  ( -62.98,  64.58)    0.99                34
 08/18/2021   20:59:46   (  55.56,-122.99) 08/18/2021   20:59:07  (  55.56,-123.00)    0.61                39
 08/21/2021   12:27:40   ( -63.52,-179.96) 08/21/2021   12:28:24  ( -63.52,-179.98)    0.76                44
 08/21/2021   13:16:38   (  57.47,  -8.18) 08/21/2021   13:16:08  (  57.47,  -8.17)    0.46                30
 08/24/2021   04:44:26   ( -65.10, -65.51) 08/24/2021   04:45:19  ( -65.09, -65.47)    1.99                53