Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 8 9.  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)
 08/10/2021   18:36:52   (  78.83,-125.56) 08/10/2021   18:38:05  (  79.15,-124.12)   46.20                73
 08/10/2021   19:21:11   ( -59.24,  79.58) 08/10/2021   19:21:16  ( -59.24,  79.60)    0.61                 5
 08/10/2021   20:09:13   (  49.89,-107.97) 08/10/2021   20:08:06  (  49.89,-107.97)    0.43                67
 08/13/2021   11:37:46   ( -60.23,-165.17) 08/13/2021   11:38:01  ( -60.23,-165.17)    0.40                15
 08/13/2021   12:26:16   (  52.51,   6.74) 08/13/2021   12:25:18  (  52.51,   6.75)    1.02                58
 08/16/2021   03:54:21   ( -61.16, -49.92) 08/16/2021   03:54:46  ( -61.17, -49.94)    1.54                25
 08/16/2021   04:42:51   (  53.47, 122.20) 08/16/2021   04:42:03  (  53.48, 122.18)    1.51                48
 08/18/2021   20:11:15   ( -63.15,  64.41) 08/18/2021   20:11:49  ( -63.15,  64.44)    1.76                34
 08/18/2021   20:59:48   (  55.68,-123.06) 08/18/2021   20:59:09  (  55.68,-123.06)    0.19                39
 08/21/2021   12:27:45   ( -63.80, 179.78) 08/21/2021   12:28:29  ( -63.80, 179.78)    0.29                44