Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 5 27.  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)
 05/27/2021   15:47:00   (  61.40, 163.94) 05/27/2021   15:48:12  (  61.70, 162.26)   94.57                72
 05/27/2021   16:17:47   ( -46.20, 130.63) 05/27/2021   16:18:13  ( -46.18, 130.70)    5.84                26
 05/27/2021   17:09:25   (  49.08, -63.27) 05/27/2021   17:08:32  (  49.14, -62.82)   33.12                53
 05/30/2021   08:34:03   ( -46.07,-113.38) 05/30/2021   08:34:40  ( -46.08,-113.38)    0.75                37
 05/30/2021   09:25:32   (  48.44,  52.95) 05/30/2021   09:24:50  (  48.51,  53.31)   27.79                42
 06/02/2021   00:51:10   ( -48.83,   1.42) 06/02/2021   00:51:56  ( -48.82,   1.43)    0.75                46
 06/02/2021   01:41:40   (  47.80, 169.16) 06/02/2021   01:41:09  (  47.88, 169.44)   22.68                31
 06/04/2021   17:08:16   ( -51.51, 116.14) 06/04/2021   17:09:11  ( -51.51, 116.16)    1.87                55
 06/04/2021   17:57:49   (  47.23, -74.66) 06/04/2021   17:57:28  (  47.27, -74.45)   17.10                21
 06/07/2021   09:24:51   ( -52.42,-128.36) 06/07/2021   09:25:56  ( -52.43,-128.38)    0.82                65
 06/07/2021   10:13:58   (  46.65,  41.51) 06/07/2021   10:13:47  (  46.65,  41.67)   11.96                11
 06/10/2021   01:42:08   ( -55.78, -14.21) 06/10/2021   01:43:22  ( -55.81, -14.18)    3.91                74