Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 3 21.  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   (  46.08, -29.71) 03/21/2021   14:58:05  (  46.19, -29.22)   39.69                34
 03/21/2021   16:07:15   ( -64.68, -19.01) 03/21/2021   16:06:02  ( -64.80, -19.87)   43.20                73
 03/24/2021   07:13:50   (  46.07,  86.23) 03/24/2021   07:14:33  (  46.17,  86.66)   35.40                43
 03/24/2021   08:29:04   ( -46.02,  85.76) 03/24/2021   08:27:51  ( -46.09,  85.49)   22.11                73
 03/26/2021   23:30:10   (  46.07,-157.84) 03/26/2021   23:31:02  (  46.16,-157.46)   31.22                52
 03/27/2021   00:45:24   ( -46.02,-158.31) 03/27/2021   00:44:20  ( -46.10,-158.63)   26.30                64
 03/29/2021   15:46:30   (  46.06, -41.90) 03/29/2021   15:47:30  (  46.10, -41.56)   26.98                60
 03/29/2021   17:01:44   ( -46.03, -42.37) 03/29/2021   17:00:49  ( -46.10, -42.75)   30.46                55
 04/01/2021   08:02:50   (  46.06,  74.03) 04/01/2021   08:03:59  (  46.11,  74.32)   22.70                69
 04/01/2021   09:18:03   ( -46.03,  73.57) 04/01/2021   09:17:17  ( -46.09,  73.12)   34.69                46
 04/04/2021   00:22:05   (  56.15,-174.84) 04/04/2021   00:23:18  (  56.24,-174.33)   32.74                73