Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 10 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)
 10/06/2021   02:54:05   ( -80.78,-126.83) 10/06/2021   02:55:18  ( -81.41,-128.05)   73.34                73
 10/06/2021   03:37:49   (  66.54, 130.08) 10/06/2021   03:37:55  (  66.54, 130.09)    0.66                 6
 10/06/2021   04:27:00   ( -61.50, -57.92) 10/06/2021   04:25:52  ( -61.50, -57.92)    0.34                68
 10/08/2021   19:54:19   (  67.22,-114.76) 10/08/2021   19:54:36  (  67.22,-114.75)    0.15                17
 10/08/2021   20:43:33   ( -62.36,  57.34) 10/08/2021   20:42:36  ( -62.37,  57.32)    1.04                57
 10/11/2021   12:10:46   (  67.74,   0.57) 10/11/2021   12:11:14  (  67.74,   0.55)    0.93                28
 10/11/2021   13:00:23   ( -64.16, 171.71) 10/11/2021   12:59:36  ( -64.16, 171.75)    1.72                47
 10/14/2021   04:27:11   (  68.15, 116.00) 10/14/2021   04:27:50  (  68.16, 115.94)    2.58                39
 10/14/2021   05:16:47   ( -64.53, -72.68) 10/14/2021   05:16:11  ( -64.53, -72.69)    0.68                36
 10/16/2021   20:43:48   (  69.26,-129.55) 10/16/2021   20:44:37  (  69.26,-129.54)    0.42                49