Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 6 15.  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   10:27:35   ( -75.22,  83.21) 06/15/2021   10:28:48  ( -75.66,  80.81)   82.99                73
 06/15/2021   11:03:22   (  48.30,  28.65) 06/15/2021   11:03:40  (  48.30,  28.67)    1.31                18
 06/15/2021   11:54:23   ( -49.44,-164.51) 06/15/2021   11:53:24  ( -49.48,-164.16)   25.72                59
 06/18/2021   03:20:13   (  50.15, 143.78) 06/18/2021   03:20:40  (  50.15, 143.79)    0.45                27
 06/18/2021   04:10:32   ( -48.87, -48.32) 06/18/2021   04:09:43  ( -48.90, -48.04)   20.64                49
 06/20/2021   19:37:01   (  51.82,-101.06) 06/20/2021   19:37:37  (  51.82,-101.06)    0.43                36
 06/20/2021   20:26:41   ( -48.30,  67.87) 06/20/2021   20:26:02  ( -48.32,  68.07)   15.44                39
 06/23/2021   11:53:46   (  53.32,  14.14) 06/23/2021   11:54:31  (  53.32,  14.12)    1.37                45
 06/23/2021   12:42:50   ( -47.72,-175.95) 06/23/2021   12:42:21  ( -47.76,-175.82)   10.26                29
 06/26/2021   04:10:54   (  56.18, 128.51) 06/26/2021   04:11:47  (  56.18, 128.54)    1.73                53
 06/26/2021   04:58:57   ( -47.10, -59.75) 06/26/2021   04:58:38  ( -47.13, -59.70)    5.81                19
 06/28/2021   20:27:33   (  57.33,-116.23) 06/28/2021   20:28:35  (  57.33,-116.22)    0.68                62