Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 7 6.  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)
 07/06/2021   22:06:18   ( -54.37,  40.63) 07/06/2021   22:06:37  ( -54.37,  40.65)    1.76                19
 07/06/2021   22:55:36   (  49.28,-149.60) 07/06/2021   22:54:40  (  49.29,-149.41)   13.61                56
 07/09/2021   14:22:58   ( -55.58, 155.90) 07/09/2021   14:23:28  ( -55.58, 155.90)    0.09                30
 07/09/2021   15:11:42   (  48.55, -33.34) 07/09/2021   15:10:58  (  48.56, -33.24)    7.46                44
 07/12/2021   06:39:37   ( -56.73, -88.83) 07/12/2021   06:40:18  ( -56.74, -88.85)    1.79                41
 07/12/2021   07:27:49   (  47.89,  82.89) 07/12/2021   07:27:17  (  47.89,  82.90)    1.50                32
 07/14/2021   22:56:37   ( -59.12,  25.60) 07/14/2021   22:57:28  ( -59.12,  25.61)    0.63                51
 07/14/2021   23:44:52   (  50.50,-162.32) 07/14/2021   23:44:30  (  50.50,-162.29)    1.88                22
 07/17/2021   15:13:11   ( -59.98, 140.94) 07/17/2021   15:14:13  ( -59.98, 140.92)    1.19                62