Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2019 9 18.  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)
 09/19/2019   01:44:57   (  67.11,  17.19) 09/19/2019   01:46:09  (  67.10,  17.18)    0.45                72
 09/19/2019   02:34:32   ( -70.88,-170.27) 09/19/2019   02:34:29  ( -70.87,-170.32)    1.99                 3
 09/19/2019   03:20:21   (  81.32,  63.83) 09/19/2019   03:19:08  (  81.84,  63.77)   56.85                73
 09/21/2019   18:02:52   (  62.15, 128.31) 09/21/2019   18:04:05  (  62.14, 128.58)   13.99                73
 09/21/2019   18:51:11   ( -70.17, -55.53) 09/21/2019   18:51:11  ( -70.17, -55.49)    1.47                 0
 09/21/2019   19:39:22   (  77.58, 131.25) 09/21/2019   19:38:09  (  77.70, 130.46)   22.84                73
 09/24/2019   10:21:57   (  53.16,-121.49) 09/24/2019   10:23:10  (  53.08,-120.93)   38.75                73
 09/24/2019   11:07:33   ( -70.40,  60.72) 09/24/2019   11:07:37  ( -70.40,  60.71)    0.54                 4
 09/24/2019   11:57:23   (  73.15,-126.87) 09/24/2019   11:56:11  (  73.14,-126.94)    2.50                72
 09/27/2019   03:24:11   ( -69.79, 175.67) 09/27/2019   03:24:18  ( -69.79, 175.72)    2.18                 7
 09/27/2019   04:13:58   (  72.71, -11.92) 09/27/2019   04:12:49  (  72.71, -11.91)    0.31                69
 09/29/2019   19:40:30   ( -70.17, -67.86) 09/29/2019   19:40:41  ( -70.17, -67.87)    0.53                11