Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 4 7.  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   09:06:09   (  78.48, -63.61) 04/09/2021   09:07:22  (  78.95, -65.73)   69.34                73
 04/09/2021   09:42:31   ( -46.09,-130.85) 04/09/2021   09:42:48  ( -46.17,-130.41)   34.54                17
 04/09/2021   10:34:18   (  49.56,  35.00) 04/09/2021   10:33:17  (  49.68,  35.83)   60.78                61
 04/12/2021   01:31:26   (  49.91,  11.65) 04/12/2021   01:32:33  (  50.09,  10.61)   76.93                67
 04/12/2021   01:58:50   ( -46.10, -14.92) 04/12/2021   01:59:15  ( -46.15, -14.53)   30.57                25
 04/12/2021   02:50:28   (  49.06, 151.16) 04/12/2021   02:49:36  (  49.19, 151.91)   56.57                52
 04/14/2021   18:15:10   ( -46.11, 101.02) 04/14/2021   18:15:44  ( -46.19, 101.34)   26.54                34
 04/14/2021   19:25:27   (  62.83, 110.06) 04/14/2021   19:24:14  (  62.98, 109.15)   49.48                73
 04/17/2021   10:31:29   ( -46.07,-143.03) 04/17/2021   10:32:11  ( -46.12,-142.75)   22.35                42
 04/17/2021   11:46:42   (  46.03,-143.49) 04/17/2021   11:45:29  (  46.14,-143.92)   35.45                73
 04/20/2021   02:47:49   ( -46.08, -27.10) 04/20/2021   02:48:39  ( -46.12, -26.87)   18.35                50