Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 1 22.  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)
 01/24/2021   07:05:57   ( -48.58, 107.05) 01/24/2021   07:06:41  ( -48.66, 106.59)   34.96                44
 01/24/2021   07:57:23   (  46.03, -86.67) 01/24/2021   07:56:48  (  46.05, -86.77)    7.60                35
 01/26/2021   23:22:09   ( -49.09,-136.80) 01/26/2021   23:23:02  ( -49.21,-137.31)   39.29                53
 01/27/2021   00:13:44   (  46.02,  29.25) 01/27/2021   00:13:18  (  46.07,  29.12)   11.82                26
 01/27/2021   00:45:28   ( -64.67,  -6.77) 01/27/2021   00:44:15  ( -64.94,  -5.08)   85.31                73
 01/29/2021   15:38:20   ( -49.65, -20.63) 01/29/2021   15:39:23  ( -49.75, -21.21)   43.37                63
 01/29/2021   16:30:05   (  46.01, 145.17) 01/29/2021   16:29:49  (  46.02, 144.97)   15.56                16
 01/29/2021   17:08:09   ( -81.13,  46.72) 01/29/2021   17:06:56  ( -81.70,  47.23)   63.88                73
 02/01/2021   07:54:32   ( -50.16,  95.53) 02/01/2021   07:55:44  ( -50.28,  94.89)   47.38                72
 02/01/2021   08:46:25   (  46.05, -98.88) 02/01/2021   08:46:18  (  46.09, -99.12)   19.36                 7
 02/01/2021   09:30:33   ( -68.44,  83.78) 02/01/2021   09:29:19  ( -68.59,  83.02)   35.34                74
 02/04/2021   01:02:43   (  46.15,  17.09) 02/04/2021   01:02:45  (  46.21,  16.80)   23.34                 2