Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 4 8.  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)
 04/09/2021   09:06:11   (  78.39, -64.13) 04/09/2021   09:07:24  (  78.86, -66.26)   69.41                73
 04/09/2021   09:42:31   ( -46.11,-130.85) 04/09/2021   09:42:48  ( -46.19,-130.42)   34.54                17
 04/09/2021   10:34:16   (  49.46,  35.05) 04/09/2021   10:33:16  (  49.64,  35.85)   60.72                60
 04/12/2021   01:31:27   (  49.89,  11.64) 04/12/2021   01:32:34  (  50.08,  10.60)   76.95                67
 04/12/2021   01:58:50   ( -46.07, -14.90) 04/12/2021   01:59:15  ( -46.11, -14.51)   30.55                25
 04/12/2021   02:50:28   (  49.02, 151.18) 04/12/2021   02:49:36  (  49.15, 151.93)   56.51                52
 04/14/2021   18:15:09   ( -46.08, 101.03) 04/14/2021   18:15:43  ( -46.15, 101.36)   26.37                34
 04/14/2021   19:25:32   (  62.53, 109.81) 04/14/2021   19:24:19  (  62.68, 108.91)   49.22                73
 04/17/2021   10:31:29   ( -46.10,-143.04) 04/17/2021   10:32:11  ( -46.14,-142.76)   22.32                42
 04/17/2021   11:46:41   (  46.06,-143.48) 04/17/2021   11:45:29  (  46.12,-143.93)   35.43                72
 04/20/2021   02:47:48   ( -46.06, -27.09) 04/20/2021   02:48:38  ( -46.08, -26.85)   18.40                50