Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2020 12 19.  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)
 12/20/2020   10:43:07   (  47.06,-127.96) 12/20/2020   10:43:25  (  47.07,-128.12)   12.42                18
 12/20/2020   11:32:27   ( -52.06,  41.57) 12/20/2020   11:31:30  ( -52.07,  41.59)    1.78                57
 12/23/2020   02:59:19   (  47.54, -11.84) 12/23/2020   02:59:45  (  47.59, -12.05)   16.44                26
 12/23/2020   03:49:06   ( -50.99, 156.98) 12/23/2020   03:48:17  ( -50.99, 156.99)    0.34                49
 12/25/2020   19:15:32   (  48.02, 104.29) 12/25/2020   19:16:06  (  48.09, 104.03)   20.69                34
 12/25/2020   20:05:42   ( -50.14, -87.48) 12/25/2020   20:05:01  ( -50.14, -87.50)    1.58                41
 12/28/2020   11:31:45   (  48.49,-139.59) 12/28/2020   11:32:28  (  48.53,-139.92)   24.64                43
 12/28/2020   12:22:45   ( -47.75,  27.40) 12/28/2020   12:22:11  ( -47.75,  27.40)    0.36                34
 12/31/2020   03:47:58   (  48.97, -23.46) 12/31/2020   03:48:49  (  49.02, -23.84)   28.44                51
 12/31/2020   04:39:36   ( -46.03, 142.63) 12/31/2020   04:39:09  ( -46.05, 142.63)    1.76                27