Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2020 12 13.  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)
 12/15/2020   02:10:41   (  46.12,  -0.19) 12/15/2020   02:10:43  (  46.14,  -0.24)    4.17                 2
 12/15/2020   02:58:50   ( -55.18, 171.34) 12/15/2020   02:57:39  ( -55.19, 171.35)    1.02                71
 12/17/2020   18:26:54   (  46.54, 115.90) 12/17/2020   18:27:03  (  46.57, 115.81)    7.86                 9
 12/17/2020   19:15:17   ( -54.80, -72.95) 12/17/2020   19:14:13  ( -54.80, -72.97)    1.23                64
 12/20/2020   10:43:08   (  46.96,-128.00) 12/20/2020   10:43:24  (  46.99,-128.15)   11.49                16
 12/20/2020   11:32:09   ( -53.05,  42.05) 12/20/2020   11:31:11  ( -53.05,  42.05)    0.07                58
 12/23/2020   02:59:22   (  47.37, -11.91) 12/23/2020   02:59:45  (  47.40, -12.11)   15.11                23
 12/23/2020   03:49:00   ( -51.34, 157.14) 12/23/2020   03:48:08  ( -51.34, 157.15)    0.77                52
 12/25/2020   19:15:36   (  47.78, 104.18) 12/25/2020   19:16:06  (  47.80, 103.94)   18.79                30