Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 1 30.  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)
 02/01/2021   07:54:31   ( -50.19,  95.55) 02/01/2021   07:55:43  ( -50.33,  94.91)   47.55                72
 02/01/2021   08:46:25   (  46.03, -98.89) 02/01/2021   08:46:18  (  46.08, -99.13)   19.42                 7
 02/01/2021   09:30:43   ( -67.93,  83.13) 02/01/2021   09:29:29  ( -68.08,  82.41)   34.47                74
 02/04/2021   01:02:44   (  46.12,  17.08) 02/04/2021   01:02:46  (  46.19,  16.79)   23.50                 2
 02/04/2021   01:52:48   ( -48.57,-174.61) 02/04/2021   01:51:35  ( -48.56,-174.66)    4.16                73
 02/06/2021   17:18:53   (  46.73, 133.26) 02/06/2021   17:19:05  (  46.78, 132.89)   28.05                12
 02/06/2021   18:09:46   ( -46.43, -59.57) 02/06/2021   18:08:41  ( -46.42, -59.62)    4.06                65
 02/09/2021   09:35:05   (  47.23,-110.61) 02/09/2021   09:35:26  (  47.30,-111.03)   32.30                21
 02/09/2021   10:26:14   ( -46.01,  56.20) 02/09/2021   10:25:17  ( -46.05,  56.12)    7.21                57
 02/12/2021   01:51:16   (  47.78,   5.55) 02/12/2021   01:51:46  (  47.87,   5.07)   36.59                30