Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 5 18.  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)
 05/19/2021   14:39:09   (  49.67, -25.98) 05/19/2021   14:40:22  (  49.66, -25.96)    1.21                73
 05/19/2021   15:28:49   ( -46.13, 142.83) 05/19/2021   15:28:47  ( -46.18, 143.07)   18.31                 2
 05/22/2021   07:01:23   (  69.52,  74.60) 05/22/2021   07:02:36  (  69.65,  75.45)   35.87                73
 05/22/2021   07:45:07   ( -46.06,-101.20) 05/22/2021   07:45:14  ( -46.07,-101.02)   14.01                 7
 05/22/2021   08:37:06   (  50.17,  64.37) 05/22/2021   08:35:54  (  50.27,  64.94)   42.56                72
 05/24/2021   23:23:49   (  80.76, 104.21) 05/24/2021   23:25:02  (  81.34, 102.90)   68.25                73
 05/25/2021   00:01:27   ( -46.10,  14.73) 05/25/2021   00:01:43  ( -46.09,  14.86)   10.08                16
 05/25/2021   00:53:16   (  49.63,-179.45) 05/25/2021   00:52:13  (  49.71,-178.94)   38.06                63
 05/27/2021   15:46:21   (  63.57, 165.73) 05/27/2021   15:47:33  (  63.87, 163.98)   92.82                72
 05/27/2021   16:17:46   ( -46.14, 130.65) 05/27/2021   16:18:11  ( -46.12, 130.73)    6.26                25
 05/27/2021   17:09:26   (  49.16, -63.30) 05/27/2021   17:08:32  (  49.21, -62.85)   33.61                54
 05/30/2021   08:34:14   ( -46.64,-113.61) 05/30/2021   08:34:48  ( -46.63,-113.58)    2.33                34