Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 12 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)
 12/22/2021   09:44:31   (  71.95,  31.60) 12/22/2021   09:44:50  (  71.94,  31.63)    0.98                19
 12/22/2021   10:34:19   ( -68.97,-156.27) 12/22/2021   10:33:21  ( -68.98,-156.30)    1.09                58
 12/25/2021   01:11:36   ( -71.76, -19.82) 12/25/2021   01:11:49  ( -71.76, -19.81)    0.59                13
 12/25/2021   02:01:37   (  69.38, 151.37) 12/25/2021   02:00:33  (  69.37, 151.42)    1.87                64
 12/27/2021   16:38:50   (  71.92, -71.90) 12/27/2021   16:38:57  (  71.91, -71.84)    2.36                 7
 12/27/2021   17:28:37   ( -68.88, 100.30) 12/27/2021   17:27:27  ( -68.88, 100.30)    0.07                70
 12/30/2021   07:19:11   (  81.04,  18.75) 12/30/2021   07:20:24  (  81.50,  19.62)   53.62                73
 12/30/2021   08:05:48   ( -71.32,-122.57) 12/30/2021   08:05:49  ( -71.32,-122.60)    1.58                 1
 12/30/2021   08:54:06   (  63.31,  54.61) 12/30/2021   08:52:53  (  63.28,  54.21)   19.94                73
 01/01/2022   22:42:59   ( -73.67,  13.55) 01/01/2022   22:44:10  ( -73.66,  13.62)    2.55                71
 01/01/2022   23:33:07   (  71.75,-175.13) 01/01/2022   23:33:01  (  71.74,-175.06)    2.69                 6
 01/04/2022   14:10:01   (  73.31, -37.39) 01/04/2022   14:11:06  (  73.31, -37.40)    0.20                65