Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 6 3.  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)
 06/04/2021   17:08:04   ( -50.86, 116.45) 06/04/2021   17:08:59  ( -50.86, 116.45)    0.30                55
 06/04/2021   17:57:49   (  47.26, -74.67) 06/04/2021   17:57:28  (  47.32, -74.46)   17.21                21
 06/07/2021   09:25:03   ( -53.14,-128.72) 06/07/2021   09:26:07  ( -53.14,-128.71)    0.96                64
 06/07/2021   10:13:58   (  46.68,  41.50) 06/07/2021   10:13:47  (  46.71,  41.65)   11.66                11
 06/10/2021   01:41:58   ( -55.18, -13.87) 06/10/2021   01:43:11  ( -55.18, -13.85)    1.61                73
 06/10/2021   02:30:07   (  46.10, 157.67) 06/10/2021   02:30:06  (  46.10, 157.75)    6.23                 1
 06/12/2021   18:04:30   ( -75.25,  77.55) 06/12/2021   18:05:44  ( -75.50,  78.73)   43.07                74
 06/12/2021   18:46:26   (  46.10, -86.39) 06/12/2021   18:46:35  (  46.10, -86.37)    1.61                 9
 06/12/2021   19:38:15   ( -49.99,  79.30) 06/12/2021   19:37:06  ( -50.05,  79.72)   30.64                69
 06/15/2021   10:27:28   ( -75.57,  84.27) 06/15/2021   10:28:41  ( -76.02,  81.87)   82.28                73
 06/15/2021   11:03:16   (  47.95,  28.80) 06/15/2021   11:03:34  (  47.95,  28.81)    0.57                18