Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 4 3.  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)
 04/04/2021   00:22:23   (  57.20,-175.46) 04/04/2021   00:23:36  (  57.28,-174.92)   33.88                73
 04/04/2021   01:34:23   ( -46.00,-170.51) 04/04/2021   01:33:46  ( -46.07,-171.00)   39.09                37
 04/06/2021   16:44:16   (  75.12, -82.45) 04/06/2021   16:45:29  (  75.40, -80.90)   54.06                73
 04/06/2021   17:26:11   ( -46.08, 113.22) 04/06/2021   17:26:19  ( -46.14, 113.72)   38.83                 8
 04/06/2021   18:18:06   (  50.01, -81.13) 04/06/2021   18:16:57  (  50.18, -80.26)   64.87                69
 04/09/2021   09:06:04   (  78.68, -62.43) 04/09/2021   09:07:17  (  79.15, -64.53)   69.13                73
 04/09/2021   09:42:31   ( -46.08,-130.84) 04/09/2021   09:42:48  ( -46.17,-130.41)   34.65                17
 04/09/2021   10:34:18   (  49.56,  35.01) 04/09/2021   10:33:17  (  49.69,  35.83)   60.84                61
 04/12/2021   01:31:27   (  49.86,  11.62) 04/12/2021   01:32:34  (  50.03,  10.58)   76.81                67
 04/12/2021   01:58:50   ( -46.09, -14.91) 04/12/2021   01:59:15  ( -46.15, -14.53)   30.60                25
 04/12/2021   02:50:28   (  49.05, 151.17) 04/12/2021   02:49:36  (  49.20, 151.91)   56.72                52
 04/14/2021   18:15:10   ( -46.10, 101.02) 04/14/2021   18:15:43  ( -46.14, 101.36)   26.67                33