Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 5 7.  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   (  46.09,-128.23) 05/08/2021   21:33:27  (  46.13,-128.08)   12.05                37
 05/08/2021   22:24:12   ( -48.41,  38.14) 05/08/2021   22:23:31  ( -48.52,  38.64)   38.81                41
 05/11/2021   13:49:09   (  46.06, -12.28) 05/11/2021   13:49:55  (  46.05, -12.18)    8.17                46
 05/11/2021   14:40:21   ( -47.82, 154.33) 05/11/2021   14:39:50  ( -47.91, 154.76)   33.76                31
 05/14/2021   06:05:29   (  46.10, 103.64) 05/14/2021   06:06:25  (  46.10, 103.68)    3.16                56
 05/14/2021   06:56:30   ( -47.23, -89.49) 05/14/2021   06:56:09  ( -47.30, -89.12)   28.62                21
 05/16/2021   22:22:14   (  47.59,-141.02) 05/16/2021   22:23:19  (  47.58,-141.00)    1.49                65
 05/16/2021   23:12:39   ( -46.63,  26.69) 05/16/2021   23:12:28  ( -46.69,  26.99)   23.39                11
 05/19/2021   14:39:33   (  51.08, -26.63) 05/19/2021   14:40:46  (  51.08, -26.57)    3.87                73