Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 5 14.  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)
 05/14/2021   06:05:29   (  46.09, 103.65) 05/14/2021   06:06:25  (  46.10, 103.68)    3.00                56
 05/14/2021   06:56:30   ( -47.22, -89.48) 05/14/2021   06:56:09  ( -47.31, -89.12)   28.67                21
 05/16/2021   22:22:05   (  47.06,-140.80) 05/16/2021   22:23:10  (  47.06,-140.80)    0.42                65
 05/16/2021   23:12:39   ( -46.63,  26.70) 05/16/2021   23:12:28  ( -46.71,  26.98)   23.54                11
 05/19/2021   14:39:19   (  50.27, -26.25) 05/19/2021   14:40:32  (  50.27, -26.22)    2.36                73
 05/19/2021   15:28:49   ( -46.17, 142.82) 05/19/2021   15:28:47  ( -46.18, 143.06)   18.47                 2
 05/22/2021   07:01:49   (  70.94,  72.38) 05/22/2021   07:03:02  (  71.09,  73.34)   38.55                73
 05/22/2021   07:45:07   ( -46.11,-101.21) 05/22/2021   07:45:15  ( -46.14,-101.04)   13.66                 8
 05/22/2021   08:37:04   (  50.11,  64.40) 05/22/2021   08:35:53  (  50.23,  64.96)   42.34                71
 05/24/2021   23:24:36   (  79.48,  89.08) 05/24/2021   23:25:49  (  80.02,  87.00)   72.15                73
 05/25/2021   00:01:25   ( -46.06,  14.75) 05/25/2021   00:01:43  ( -46.10,  14.85)    9.23                18
 05/25/2021   00:53:13   (  49.54,-179.41) 05/25/2021   00:52:12  (  49.66,-178.92)   37.72                61
 05/27/2021   15:47:35   (  59.37, 162.46) 05/27/2021   15:48:47  (  59.65, 160.85)   96.42                72
 05/27/2021   16:17:44   ( -46.07, 130.68) 05/27/2021   16:18:11  ( -46.06, 130.75)    5.17                27