Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 12 24.  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   01:11:38   ( -71.84, -19.97) 12/25/2021   01:11:51  ( -71.84, -19.95)    0.88                13
 12/25/2021   02:01:38   (  69.41, 151.33) 12/25/2021   02:00:34  (  69.40, 151.38)    2.19                64
 12/27/2021   16:38:52   (  72.00, -72.06) 12/27/2021   16:38:59  (  71.99, -71.98)    2.68                 7
 12/27/2021   17:28:39   ( -68.97, 100.19) 12/27/2021   17:27:29  ( -68.97, 100.19)    0.27                70
 12/30/2021   07:19:12   (  81.06,  18.13) 12/30/2021   07:20:25  (  81.53,  18.97)   54.07                73
 12/30/2021   08:05:47   ( -71.30,-122.54) 12/30/2021   08:05:48  ( -71.31,-122.58)    1.39                 1
 12/30/2021   08:54:07   (  63.40,  54.53) 12/30/2021   08:52:54  (  63.37,  54.14)   19.64                73
 01/01/2022   22:42:58   ( -73.66,  13.57) 01/01/2022   22:44:09  ( -73.65,  13.65)    2.61                71
 01/01/2022   23:32:53   (  71.07,-173.90) 01/01/2022   23:32:48  (  71.08,-173.97)    2.67                 5
 01/04/2022   14:10:01   (  73.30, -37.38) 01/04/2022   14:11:06  (  73.30, -37.39)    0.39                65