Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2019 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)
 09/21/2019   18:02:51   (  62.26, 128.40) 09/21/2019   18:04:04  (  62.24, 128.66)   13.66                73
 09/21/2019   18:51:11   ( -70.22, -55.45) 09/21/2019   18:51:11  ( -70.22, -55.42)    1.13                 0
 09/21/2019   19:39:21   (  77.66, 131.63) 09/21/2019   19:38:08  (  77.78, 130.83)   23.30                73
 09/24/2019   10:21:53   (  53.39,-121.37) 09/24/2019   10:23:06  (  53.31,-120.82)   38.08                73
 09/24/2019   11:07:31   ( -70.50,  60.89) 09/24/2019   11:07:35  ( -70.50,  60.86)    1.10                 4
 09/24/2019   11:57:36   (  72.49,-128.24) 09/24/2019   11:56:23  (  72.50,-128.18)    2.40                73
 09/27/2019   03:24:08   ( -69.95, 175.91) 09/27/2019   03:24:15  ( -69.95, 175.95)    1.34                 7
 09/27/2019   04:13:56   (  72.81, -11.69) 09/27/2019   04:12:47  (  72.81, -11.71)    0.52                69
 09/29/2019   19:40:26   ( -70.39, -67.51) 09/29/2019   19:40:37  ( -70.39, -67.56)    1.70                11
 09/29/2019   20:30:30   (  72.42, 103.40) 09/29/2019   20:29:24  (  72.43, 103.44)    1.57                66
 10/02/2019   11:57:01   ( -69.94,  47.68) 10/02/2019   11:57:15  ( -69.94,  47.68)    0.13                14