Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 3 10.  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)
 03/10/2021   21:02:38   ( -50.34,  57.45) 03/10/2021   21:03:51  ( -50.41,  57.94)   36.09                73
 03/10/2021   22:16:37   (  46.01,  58.78) 03/10/2021   22:15:58  (  46.06,  58.47)   24.58                39
 03/13/2021   13:24:17   ( -68.15, 160.19) 03/13/2021   13:25:30  ( -68.33, 161.35)   51.40                73
 03/13/2021   14:32:57   (  46.02, 174.72) 03/13/2021   14:32:26  (  46.10, 174.37)   28.50                31
 03/13/2021   15:00:24   ( -50.15, 148.09) 03/13/2021   14:59:12  ( -50.36, 149.12)   76.94                72
 03/16/2021   05:57:40   ( -49.20, 124.65) 03/16/2021   05:58:35  ( -49.35, 123.87)   58.26                55
 03/16/2021   06:49:16   (  46.03, -69.34) 03/16/2021   06:48:54  (  46.08, -69.75)   32.26                22
 03/16/2021   07:16:35   ( -49.68, -95.76) 03/16/2021   07:15:31  ( -49.85, -94.78)   73.31                64
 03/18/2021   22:13:51   ( -49.72,-119.19) 03/18/2021   22:14:55  ( -49.85,-120.03)   62.11                64
 03/18/2021   23:05:36   (  46.04,  46.59) 03/18/2021   23:05:22  (  46.11,  46.14)   35.93                14
 03/18/2021   23:44:07   ( -81.27, -61.78) 03/18/2021   23:42:54  ( -81.83, -61.92)   62.91                73
 03/21/2021   14:30:03   ( -50.19,  -3.05) 03/21/2021   14:31:15  ( -50.35,  -3.94)   65.73                72
 03/21/2021   15:21:56   (  46.04, 162.53) 03/21/2021   15:21:50  (  46.13, 162.03)   39.64                 6