Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 5 15.  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)
 05/16/2021   22:22:05   (  47.10,-140.82) 05/16/2021   22:23:10  (  47.10,-140.82)    0.33                65
 05/16/2021   23:12:39   ( -46.69,  26.68) 05/16/2021   23:12:28  ( -46.76,  26.96)   23.48                11
 05/19/2021   14:39:18   (  50.20, -26.22) 05/19/2021   14:40:31  (  50.20, -26.19)    2.20                73
 05/19/2021   15:28:48   ( -46.11, 142.85) 05/19/2021   15:28:47  ( -46.18, 143.06)   18.35                 1
 05/22/2021   07:01:47   (  70.82,  72.57) 05/22/2021   07:03:00  (  70.97,  73.53)   38.31                73
 05/22/2021   07:45:07   ( -46.11,-101.21) 05/22/2021   07:45:15  ( -46.13,-101.04)   13.58                 8
 05/22/2021   08:37:04   (  50.09,  64.40) 05/22/2021   08:35:53  (  50.22,  64.97)   42.29                71
 05/24/2021   23:24:33   (  79.59,  89.97) 05/24/2021   23:25:46  (  80.13,  87.92)   71.92                73
 05/25/2021   00:01:26   ( -46.11,  14.73) 05/25/2021   00:01:44  ( -46.15,  14.84)    9.25                18
 05/25/2021   00:53:14   (  49.58,-179.43) 05/25/2021   00:52:12  (  49.65,-178.92)   37.62                62
 05/27/2021   15:47:30   (  59.61, 162.63) 05/27/2021   15:48:42  (  59.89, 161.00)   96.31                72
 05/27/2021   16:17:43   ( -46.07, 130.69) 05/27/2021   16:18:10  ( -46.06, 130.75)    5.05                27