Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2020 12 8.  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   16:46:12   ( -49.86, -37.80) 12/09/2020   16:47:19  ( -49.91, -38.16)   26.73                67
 12/09/2020   17:37:31   (  47.72, 128.60) 12/09/2020   17:37:20  (  47.72, 128.60)    0.52                11
 12/09/2020   18:18:21   ( -79.19, -17.86) 12/09/2020   18:17:07  ( -79.57, -19.23)   50.59                74
 12/12/2020   09:54:22   (  46.01,-116.16) 12/12/2020   09:54:17  (  46.02,-116.17)    1.26                 5
 12/12/2020   10:39:33   ( -65.04,  62.65) 12/12/2020   10:38:19  ( -65.12,  62.30)   18.39                74
 12/15/2020   02:10:40   (  46.15,  -0.18) 12/15/2020   02:10:42  (  46.16,  -0.23)    3.91                 2
 12/15/2020   02:58:46   ( -55.38, 171.44) 12/15/2020   02:57:35  ( -55.38, 171.45)    0.65                71
 12/17/2020   18:26:54   (  46.57, 115.91) 12/17/2020   18:27:03  (  46.59, 115.81)    7.66                 9
 12/17/2020   19:15:38   ( -53.63, -73.57) 12/17/2020   19:14:33  ( -53.64, -73.55)    1.94                65
 12/20/2020   10:43:09   (  46.93,-128.02) 12/20/2020   10:43:25  (  46.94,-128.17)   11.43                16