Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 9 19.  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)
 09/20/2021   01:08:47   ( -64.85, -11.16) 09/20/2021   01:09:01  ( -64.85, -11.19)    1.50                14
 09/20/2021   01:57:47   (  58.90, 160.94) 09/20/2021   01:56:46  (  58.91, 160.91)    1.87                61
 09/22/2021   17:25:38   ( -66.66, 102.89) 09/22/2021   17:26:03  ( -66.65, 102.94)    2.45                25
 09/22/2021   18:14:42   (  61.00, -84.60) 09/22/2021   18:13:52  (  60.99, -84.59)    0.32                50
 09/25/2021   09:42:07   ( -67.26,-141.86) 09/25/2021   09:42:44  ( -67.26,-141.84)    1.25                37
 09/25/2021   10:31:12   (  61.68,  30.82) 09/25/2021   10:30:34  (  61.69,  30.78)    2.02                38
 09/28/2021   01:58:33   ( -67.71, -26.45) 09/28/2021   01:59:22  ( -67.71, -26.46)    0.34                49
 09/28/2021   02:48:01   (  63.42, 145.31) 09/28/2021   02:47:34  (  63.42, 145.31)    0.11                27
 09/30/2021   18:14:57   ( -68.10,  89.00) 09/30/2021   18:15:58  ( -68.11,  88.95)    2.29                61