Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 9 20.  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)
 09/22/2021   17:25:19   ( -65.62, 104.02) 09/22/2021   17:25:45  ( -65.62, 103.97)    2.43                26
 09/22/2021   18:14:42   (  60.98, -84.59) 09/22/2021   18:13:52  (  60.98, -84.59)    0.26                50
 09/25/2021   09:42:07   ( -67.26,-141.85) 09/25/2021   09:42:44  ( -67.25,-141.83)    1.21                37
 09/25/2021   10:31:12   (  61.67,  30.83) 09/25/2021   10:30:34  (  61.68,  30.79)    2.15                38
 09/28/2021   01:58:32   ( -67.70, -26.44) 09/28/2021   01:59:21  ( -67.70, -26.45)    0.46                49
 09/28/2021   02:48:00   (  63.41, 145.32) 09/28/2021   02:47:33  (  63.41, 145.32)    0.16                27
 09/30/2021   18:14:56   ( -68.04,  89.08) 09/30/2021   18:15:57  ( -68.05,  89.03)    2.55                61
 09/30/2021   19:04:45   (  64.92,-100.14) 09/30/2021   19:04:29  (  64.92,-100.10)    1.84                16
 10/03/2021   10:31:35   ( -69.18,-156.49) 10/03/2021   10:32:47  ( -69.18,-156.49)    0.19                72
 10/03/2021   11:21:08   (  65.22,  15.52) 10/03/2021   11:21:04  (  65.22,  15.50)    1.15                 4