Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 6 11.  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)
 06/12/2021   18:04:39   ( -75.69,  76.18) 06/12/2021   18:05:53  ( -75.95,  77.40)   44.11                74
 06/12/2021   18:46:30   (  46.34, -86.48) 06/12/2021   18:46:39  (  46.34, -86.45)    2.24                 9
 06/12/2021   19:38:15   ( -50.02,  79.29) 06/12/2021   19:37:06  ( -50.06,  79.71)   30.67                69
 06/15/2021   10:27:40   ( -74.98,  82.51) 06/15/2021   10:28:53  ( -75.42,  80.12)   83.36                73
 06/15/2021   11:03:25   (  48.48,  28.58) 06/15/2021   11:03:43  (  48.48,  28.60)    1.64                18
 06/15/2021   11:54:22   ( -49.39,-164.49) 06/15/2021   11:53:24  ( -49.47,-164.16)   25.68                58
 06/18/2021   03:20:19   (  50.50, 143.62) 06/18/2021   03:20:46  (  50.50, 143.64)    1.16                27
 06/18/2021   04:10:30   ( -48.76, -48.27) 06/18/2021   04:09:42  ( -48.83, -48.02)   20.52                48
 06/20/2021   19:37:10   (  52.35,-101.32) 06/20/2021   19:37:46  (  52.35,-101.31)    0.77                36
 06/20/2021   20:26:39   ( -48.19,  67.91) 06/20/2021   20:26:01  ( -48.25,  68.10)   15.48                38
 06/23/2021   11:53:59   (  54.08,  13.74) 06/23/2021   11:54:44  (  54.08,  13.75)    0.46                45