Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 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)
 09/14/2021   15:46:10   (  67.05, -52.72) 09/14/2021   15:47:16  (  67.05, -52.76)    2.18                66
 09/14/2021   16:35:39   ( -63.00, 118.64) 09/14/2021   16:35:30  ( -63.01, 118.63)    0.27                 9
 09/17/2021   08:04:34   (  73.65,  52.39) 09/17/2021   08:05:47  (  73.72,  52.99)   20.61                73
 09/17/2021   08:52:27   ( -64.67,-126.93) 09/17/2021   08:52:28  ( -64.66,-126.88)    2.28                 1
 09/17/2021   09:41:02   (  57.31,  46.02) 09/17/2021   09:39:49  (  57.31,  46.00)    1.44                73
 09/20/2021   01:08:49   ( -64.95, -11.26) 09/20/2021   01:09:01  ( -64.95, -11.27)    0.40                12
 09/20/2021   01:57:48   (  58.96, 160.90) 09/20/2021   01:56:45  (  58.96, 160.89)    1.05                63
 09/22/2021   17:25:30   ( -66.21, 103.38) 09/22/2021   17:25:52  ( -66.21, 103.41)    1.23                22
 09/22/2021   18:14:30   (  60.32, -84.10) 09/22/2021   18:13:37  (  60.32, -84.12)    0.92                53
 09/25/2021   09:42:06   ( -67.20,-141.79) 09/25/2021   09:42:38  ( -67.19,-141.74)    2.36                32