Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 1 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)
 01/08/2021   05:28:37   ( -46.04, 130.43) 01/08/2021   05:28:33  ( -46.09, 130.30)   11.71                 4
 01/08/2021   06:13:50   (  64.72, -51.06) 01/08/2021   06:12:37  (  64.78, -51.55)   23.87                73
 01/10/2021   21:44:54   ( -46.28,-113.55) 01/10/2021   21:44:58  ( -46.31,-113.74)   14.95                 4
 01/10/2021   22:34:13   (  51.05,  55.83) 01/10/2021   22:33:01  (  51.05,  55.84)    0.33                72
 01/13/2021   14:01:07   ( -46.74,   2.56) 01/13/2021   14:01:19  ( -46.76,   2.31)   19.08                12
 01/13/2021   14:50:52   (  50.02, 171.28) 01/13/2021   14:49:47  (  50.02, 171.27)    0.88                65
 01/16/2021   06:17:21   ( -47.14, 118.65) 01/16/2021   06:17:40  ( -47.20, 118.36)   22.62                19
 01/16/2021   07:07:58   (  47.43, -73.91) 01/16/2021   07:06:59  (  47.43, -73.89)    1.07                59
 01/18/2021   22:33:34   ( -47.55,-125.25) 01/18/2021   22:34:00  ( -47.62,-125.59)   26.34                26