Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2020 12 26.  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)
 12/28/2020   11:31:44   (  48.53,-139.56) 12/28/2020   11:32:27  (  48.57,-139.90)   24.86                43
 12/28/2020   12:22:46   ( -47.67,  27.38) 12/28/2020   12:22:12  ( -47.67,  27.37)    0.36                34
 12/31/2020   03:47:58   (  48.94, -23.46) 12/31/2020   03:48:49  (  48.99, -23.85)   28.62                51
 12/31/2020   04:39:36   ( -46.01, 142.63) 12/31/2020   04:39:09  ( -46.02, 142.62)    1.90                27
 12/31/2020   05:09:24   (  58.24, 111.68) 12/31/2020   05:08:12  (  58.51, 113.25)   96.75                72
 01/02/2021   20:04:10   (  49.41,  92.67) 01/02/2021   20:05:09  (  49.47,  92.23)   32.39                59
 01/02/2021   20:55:56   ( -46.01,-101.44) 01/02/2021   20:55:37  ( -46.03,-101.49)    4.38                19
 01/02/2021   21:31:00   (  75.18,-154.81) 01/02/2021   21:29:47  (  75.58,-152.53)   78.10                73
 01/05/2021   12:20:23   (  49.87,-151.20) 01/05/2021   12:21:30  (  49.93,-151.69)   36.10                67
 01/05/2021   13:12:17   ( -46.01,  14.48) 01/05/2021   13:12:06  ( -46.02,  14.38)    7.77                11
 01/05/2021   13:52:31   (  79.29,-130.46) 01/05/2021   13:51:18  (  79.67,-132.04)   52.53                73
 01/08/2021   05:28:38   ( -46.01, 130.41) 01/08/2021   05:28:35  ( -46.01, 130.26)   11.57                 3