Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2019 9 13.  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)
 09/13/2019   17:12:09   (  66.84, 145.10) 09/13/2019   17:13:13  (  66.85, 145.15)    2.36                64
 09/13/2019   18:01:42   ( -70.72, -42.32) 09/13/2019   18:01:31  ( -70.72, -42.30)    0.44                11
 09/16/2019   09:28:34   (  66.91, -98.93) 09/16/2019   09:29:42  (  66.92, -98.90)    1.34                68
 09/16/2019   10:18:08   ( -70.75,  73.61) 09/16/2019   10:18:01  ( -70.74,  73.60)    0.28                 7
 09/16/2019   11:01:06   (  76.66,  -3.06) 09/16/2019   10:59:54  (  77.23,  -0.39)   92.06                72
 09/19/2019   01:44:59   (  66.98,  17.04) 09/19/2019   01:46:11  (  66.98,  17.04)    0.14                72
 09/19/2019   02:34:34   ( -70.77,-170.47) 09/19/2019   02:34:31  ( -70.76,-170.50)    1.23                 3
 09/19/2019   03:20:26   (  81.33,  61.73) 09/19/2019   03:19:13  (  81.83,  61.54)   55.67                73
 09/21/2019   18:03:01   (  61.69, 127.94) 09/21/2019   18:04:14  (  61.67, 128.23)   15.38                73
 09/21/2019   18:50:58   ( -70.89, -54.38) 09/21/2019   18:50:59  ( -70.88, -54.44)    2.41                 1
 09/21/2019   19:39:31   (  77.23, 129.65) 09/21/2019   19:38:18  (  77.33, 128.93)   20.95                73
 09/24/2019   10:22:12   (  52.28,-121.93) 09/24/2019   10:23:25  (  52.19,-121.35)   41.24                73
 09/24/2019   11:07:39   ( -70.07,  60.20) 09/24/2019   11:07:43  ( -70.07,  60.23)    1.26                 4
 09/24/2019   11:57:27   (  72.93,-127.35) 09/24/2019   11:56:15  (  72.92,-127.37)    0.69                72