Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 5 8.  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)
 05/08/2021   21:32:50   (  46.08,-128.23) 05/08/2021   21:33:27  (  46.12,-128.08)   12.05                37
 05/08/2021   22:24:12   ( -48.41,  38.14) 05/08/2021   22:23:31  ( -48.51,  38.64)   38.81                41
 05/11/2021   13:49:10   (  46.11, -12.30) 05/11/2021   13:49:56  (  46.11, -12.20)    7.93                46
 05/11/2021   14:40:21   ( -47.81, 154.33) 05/11/2021   14:39:50  ( -47.90, 154.76)   33.81                31
 05/14/2021   06:05:29   (  46.09, 103.65) 05/14/2021   06:06:25  (  46.10, 103.68)    3.11                56
 05/14/2021   06:56:30   ( -47.21, -89.48) 05/14/2021   06:56:09  ( -47.30, -89.12)   28.76                21
 05/16/2021   22:22:03   (  46.94,-140.76) 05/16/2021   22:23:08  (  46.94,-140.75)    0.27                65
 05/16/2021   23:12:40   ( -46.68,  26.68) 05/16/2021   23:12:29  ( -46.76,  26.96)   23.81                11
 05/19/2021   14:39:13   (  49.91, -26.09) 05/19/2021   14:40:26  (  49.91, -26.07)    1.85                73