Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2020 12 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)
 12/09/2020   16:46:11   ( -49.90, -37.78) 12/09/2020   16:47:18  ( -49.95, -38.14)   26.75                67
 12/09/2020   17:37:28   (  47.87, 128.67) 12/09/2020   17:37:17  (  47.87, 128.66)    0.79                11
 12/09/2020   18:18:17   ( -79.31, -16.90) 12/09/2020   18:17:03  ( -79.70, -18.26)   50.98                74
 12/12/2020   09:54:21   (  46.06,-116.15) 12/12/2020   09:54:16  (  46.06,-116.15)    0.52                 5
 12/12/2020   10:39:26   ( -65.41,  63.02) 12/12/2020   10:38:12  ( -65.49,  62.65)   19.14                74
 12/15/2020   02:10:41   (  46.14,  -0.19) 12/15/2020   02:10:43  (  46.13,  -0.24)    4.12                 2
 12/15/2020   02:58:39   ( -55.83, 171.69) 12/15/2020   02:57:28  ( -55.82, 171.69)    0.45                71
 12/17/2020   18:26:56   (  46.51, 115.88) 12/17/2020   18:27:04  (  46.55, 115.80)    8.00                 8
 12/17/2020   19:15:26   ( -54.37, -73.19) 12/17/2020   19:14:21  ( -54.37, -73.18)    0.27                65
 12/20/2020   10:43:10   (  46.88,-128.04) 12/20/2020   10:43:25  (  46.90,-128.18)   10.90                15