Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 3 23.  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)
 03/24/2021   07:13:50   (  46.06,  86.23) 03/24/2021   07:14:33  (  46.16,  86.67)   35.31                43
 03/24/2021   08:29:04   ( -46.02,  85.76) 03/24/2021   08:27:51  ( -46.10,  85.50)   22.25                73
 03/26/2021   23:30:10   (  46.06,-157.84) 03/26/2021   23:31:02  (  46.15,-157.45)   31.10                52
 03/27/2021   00:45:24   ( -46.03,-158.30) 03/27/2021   00:44:20  ( -46.11,-158.62)   26.43                64
 03/29/2021   15:46:30   (  46.06, -41.90) 03/29/2021   15:47:30  (  46.10, -41.56)   26.99                60
 03/29/2021   17:01:44   ( -46.03, -42.37) 03/29/2021   17:00:49  ( -46.11, -42.75)   30.57                55
 04/01/2021   08:02:49   (  46.07,  74.03) 04/01/2021   08:03:58  (  46.11,  74.32)   22.65                69
 04/01/2021   09:18:03   ( -46.02,  73.56) 04/01/2021   09:17:17  ( -46.09,  73.13)   34.75                46
 04/04/2021   00:22:10   (  56.45,-175.01) 04/04/2021   00:23:23  (  56.53,-174.49)   33.07                73