Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 3 20.  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)
 03/21/2021   14:57:31   (  46.09, -29.72) 03/21/2021   14:58:05  (  46.20, -29.23)   39.68                34
 03/21/2021   16:07:18   ( -64.50, -19.18) 03/21/2021   16:06:05  ( -64.62, -20.04)   42.99                73
 03/24/2021   07:13:51   (  46.09,  86.22) 03/24/2021   07:14:34  (  46.18,  86.66)   35.32                43
 03/24/2021   08:29:04   ( -46.05,  85.77) 03/24/2021   08:27:52  ( -46.08,  85.49)   22.29                72
 03/26/2021   23:30:10   (  46.09,-157.85) 03/26/2021   23:31:02  (  46.17,-157.46)   31.02                52
 03/27/2021   00:45:23   ( -46.06,-158.29) 03/27/2021   00:44:20  ( -46.09,-158.63)   26.51                63
 03/29/2021   15:46:30   (  46.09, -41.91) 03/29/2021   15:47:31  (  46.16, -41.58)   26.75                61
 03/29/2021   17:01:43   ( -46.06, -42.36) 03/29/2021   17:00:49  ( -46.10, -42.75)   30.78                54
 04/01/2021   08:02:50   (  46.10,  74.02) 04/01/2021   08:04:00  (  46.16,  74.30)   22.53                70