Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 8 6.  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)
 08/08/2021   02:15:43   (  64.45, 152.14) 08/08/2021   02:16:53  (  64.44, 152.18)    2.05                70
 08/08/2021   03:04:29   ( -57.91, -35.48) 08/08/2021   03:04:24  ( -57.90, -35.46)    1.16                 5
 08/10/2021   18:36:47   (  78.65,-124.37) 08/10/2021   18:38:00  (  78.95,-122.93)   45.40                73
 08/10/2021   19:21:08   ( -59.07,  79.70) 08/10/2021   19:21:13  ( -59.07,  79.70)    0.14                 5
 08/10/2021   20:09:13   (  49.89,-107.97) 08/10/2021   20:08:06  (  49.90,-107.97)    1.18                67
 08/13/2021   11:37:43   ( -60.06,-165.04) 08/13/2021   11:37:58  ( -60.06,-165.06)    1.07                15
 08/13/2021   12:26:12   (  52.28,   6.85) 08/13/2021   12:25:14  (  52.28,   6.86)    0.50                58
 08/16/2021   03:54:39   ( -62.16, -50.70) 08/16/2021   03:55:03  ( -62.15, -50.66)    2.08                24
 08/16/2021   04:43:11   (  54.61, 121.59) 08/16/2021   04:42:22  (  54.60, 121.62)    1.72                49
 08/18/2021   20:11:09   ( -62.81,  64.71) 08/18/2021   20:11:43  ( -62.80,  64.72)    0.55                34