Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 3 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)
 03/13/2021   13:24:29   ( -68.80, 159.34) 03/13/2021   13:25:42  ( -68.98, 160.55)   52.45                73
 03/13/2021   14:32:57   (  46.01, 174.72) 03/13/2021   14:32:27  (  46.06, 174.35)   29.15                30
 03/13/2021   15:00:24   ( -50.16, 148.09) 03/13/2021   14:59:12  ( -50.35, 149.13)   77.16                72
 03/16/2021   05:57:39   ( -49.25, 124.67) 03/16/2021   05:58:35  ( -49.39, 123.88)   59.24                56
 03/16/2021   06:49:16   (  46.02, -69.34) 03/16/2021   06:48:54  (  46.12, -69.75)   33.26                22
 03/16/2021   07:16:34   ( -49.63, -95.74) 03/16/2021   07:15:31  ( -49.81, -94.76)   73.31                63
 03/18/2021   22:13:50   ( -49.77,-119.17) 03/18/2021   22:14:55  ( -49.92,-120.02)   63.30                65
 03/18/2021   23:05:36   (  46.03,  46.59) 03/18/2021   23:05:23  (  46.12,  46.13)   37.15                13
 03/18/2021   23:44:54   ( -80.86, -79.65) 03/18/2021   23:43:41  ( -81.38, -80.88)   61.49                73
 03/21/2021   14:57:31   (  46.11, -29.72) 03/21/2021   14:58:04  (  46.20, -29.22)   39.68                33
 03/21/2021   16:06:53   ( -65.86, -17.82) 03/21/2021   16:05:40  ( -65.99, -18.74)   43.66                73
 03/24/2021   07:13:51   (  46.11,  86.21) 03/24/2021   07:14:33  (  46.22,  86.65)   35.84                42
 03/24/2021   08:28:48   ( -46.96,  86.13) 03/24/2021   08:27:35  ( -46.99,  85.85)   22.00                73
 03/26/2021   23:30:10   (  46.11,-157.86) 03/26/2021   23:31:00  (  46.19,-157.46)   31.79                50