Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 6 10.  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)
 06/10/2021   02:54:32   (  46.01, -10.07) 06/10/2021   02:53:54  (  46.20, -11.01)   75.93                38
 06/12/2021   18:04:37   ( -75.60,  76.48) 06/12/2021   18:05:51  ( -75.85,  77.69)   43.89                74
 06/12/2021   18:46:29   (  46.29, -86.46) 06/12/2021   18:46:38  (  46.28, -86.43)    2.17                 9
 06/12/2021   19:38:15   ( -50.02,  79.29) 06/12/2021   19:37:06  ( -50.07,  79.71)   30.68                69
 06/15/2021   10:27:39   ( -75.08,  82.78) 06/15/2021   10:28:52  ( -75.52,  80.39)   83.19                73
 06/15/2021   11:03:25   (  48.43,  28.60) 06/15/2021   11:03:43  (  48.42,  28.62)    1.50                18
 06/15/2021   11:54:22   ( -49.39,-164.49) 06/15/2021   11:53:24  ( -49.48,-164.16)   25.77                58
 06/18/2021   03:20:17   (  50.39, 143.67) 06/18/2021   03:20:44  (  50.39, 143.69)    0.92                27
 06/18/2021   04:10:30   ( -48.76, -48.27) 06/18/2021   04:09:42  ( -48.84, -48.02)   20.65                48
 06/20/2021   19:37:07   (  52.18,-101.23) 06/20/2021   19:37:43  (  52.18,-101.23)    0.40                36
 06/20/2021   20:26:40   ( -48.25,  67.89) 06/20/2021   20:26:01  ( -48.26,  68.10)   15.56                39
 06/23/2021   11:53:55   (  53.85,  13.86) 06/23/2021   11:54:40  (  53.85,  13.86)    0.07                45