Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 3 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)
 03/16/2021   05:57:40   ( -49.23, 124.66) 03/16/2021   05:58:36  ( -49.37, 123.87)   59.25                56
 03/16/2021   06:49:17   (  46.00, -69.35) 03/16/2021   06:48:55  (  46.11, -69.76)   33.27                22
 03/16/2021   07:16:35   ( -49.65, -95.75) 03/16/2021   07:15:32  ( -49.83, -94.77)   73.27                63
 03/18/2021   22:13:51   ( -49.75,-119.17) 03/18/2021   22:14:56  ( -49.90,-120.03)   63.31                65
 03/18/2021   23:05:36   (  46.01,  46.59) 03/18/2021   23:05:23  (  46.10,  46.12)   37.16                13
 03/18/2021   23:44:55   ( -80.84, -80.13) 03/18/2021   23:43:42  ( -81.35, -81.38)   61.42                73
 03/21/2021   14:57:30   (  46.07, -29.71) 03/21/2021   14:58:03  (  46.15, -29.21)   39.60                33
 03/21/2021   16:06:55   ( -65.74, -17.96) 03/21/2021   16:05:42  ( -65.86, -18.86)   43.52                73
 03/24/2021   07:13:50   (  46.07,  86.23) 03/24/2021   07:14:32  (  46.17,  86.67)   35.68                42
 03/24/2021   08:28:51   ( -46.77,  86.06) 03/24/2021   08:27:38  ( -46.80,  85.77)   21.77                73
 03/26/2021   23:30:10   (  46.07,-157.84) 03/26/2021   23:31:00  (  46.14,-157.44)   31.68                50