Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 12 23.  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)
 12/25/2021   01:11:36   ( -71.76, -19.83) 12/25/2021   01:11:49  ( -71.76, -19.81)    0.46                13
 12/25/2021   02:01:37   (  69.38, 151.37) 12/25/2021   02:00:33  (  69.38, 151.41)    1.84                64
 12/27/2021   16:38:49   (  71.87, -71.81) 12/27/2021   16:38:56  (  71.87, -71.76)    1.93                 7
 12/27/2021   17:28:36   ( -68.83, 100.37) 12/27/2021   17:27:26  ( -68.83, 100.36)    0.51                70
 12/30/2021   07:19:02   (  80.91,  22.02) 12/30/2021   07:20:15  (  81.35,  23.01)   51.37                73
 12/30/2021   08:05:44   ( -71.12,-122.22) 12/30/2021   08:05:45  ( -71.13,-122.29)    2.69                 1
 12/30/2021   08:53:57   (  62.82,  55.03) 12/30/2021   08:52:44  (  62.78,  54.61)   21.63                73
 01/01/2022   22:42:54   ( -73.43,  14.10) 01/01/2022   22:44:05  ( -73.43,  14.11)    0.58                71
 01/01/2022   23:33:02   (  71.50,-174.68) 01/01/2022   23:32:56  (  71.50,-174.65)    0.85                 6
 01/04/2022   14:10:06   (  73.57, -38.00) 01/04/2022   14:11:10  (  73.56, -37.93)    2.48                64