Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 6 14.  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)
 06/15/2021   10:27:33   ( -75.34,  83.56) 06/15/2021   10:28:46  ( -75.78,  81.17)   82.76                73
 06/15/2021   11:03:21   (  48.22,  28.69) 06/15/2021   11:03:39  (  48.21,  28.70)    1.13                18
 06/15/2021   11:54:23   ( -49.41,-164.50) 06/15/2021   11:53:24  ( -49.45,-164.15)   25.66                59
 06/18/2021   03:20:11   (  50.00, 143.85) 06/18/2021   03:20:38  (  50.01, 143.85)    0.09                27
 06/18/2021   04:10:32   ( -48.84, -48.31) 06/18/2021   04:09:43  ( -48.87, -48.03)   20.57                49
 06/20/2021   19:36:56   (  51.56,-100.93) 06/20/2021   19:37:32  (  51.56,-100.95)    1.10                36
 06/20/2021   20:26:40   ( -48.26,  67.88) 06/20/2021   20:26:01  ( -48.30,  68.08)   15.42                39
 06/23/2021   11:54:05   (  54.42,  13.56) 06/23/2021   11:54:49  (  54.42,  13.58)    1.58                44
 06/23/2021   12:42:49   ( -47.68,-175.94) 06/23/2021   12:42:20  ( -47.73,-175.81)   10.59                29
 06/26/2021   04:10:44   (  55.57, 128.87) 06/26/2021   04:11:37  (  55.57, 128.87)    0.17                53