Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 7 11.  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)
 07/12/2021   06:40:00   ( -58.05, -89.64) 07/12/2021   06:40:40  ( -58.05, -89.61)    2.03                40
 07/12/2021   07:27:49   (  47.90,  82.88) 07/12/2021   07:27:17  (  47.91,  82.89)    1.60                32
 07/14/2021   22:56:35   ( -58.97,  25.70) 07/14/2021   22:57:26  ( -58.97,  25.70)    0.13                51
 07/14/2021   23:44:51   (  50.40,-162.27) 07/14/2021   23:44:29  (  50.40,-162.25)    1.55                22
 07/17/2021   15:13:07   ( -59.71, 141.13) 07/17/2021   15:14:09  ( -59.72, 141.09)    1.96                62
 07/17/2021   16:01:29   (  51.52, -46.85) 07/17/2021   16:01:18  (  51.52, -46.87)    1.23                11
 07/20/2021   07:30:00   ( -61.69,-104.40) 07/20/2021   07:31:12  ( -61.69,-104.39)    0.34                72
 07/20/2021   08:18:30   (  54.00,  67.84) 07/20/2021   08:18:29  (  54.00,  67.84)    0.09                 1
 07/22/2021   23:52:36   ( -79.99, -34.08) 07/22/2021   23:53:49  ( -80.39, -32.51)   52.96                73
 07/23/2021   00:35:29   (  56.31,-177.50) 07/23/2021   00:35:38  (  56.31,-177.48)    1.12                 9