Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 4 9.  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)
 04/09/2021   09:06:13   (  78.32, -64.55) 04/09/2021   09:07:26  (  78.78, -66.68)   69.47                73
 04/09/2021   09:42:31   ( -46.10,-130.85) 04/09/2021   09:42:48  ( -46.18,-130.42)   34.50                17
 04/09/2021   10:34:17   (  49.51,  35.03) 04/09/2021   10:33:17  (  49.69,  35.83)   60.72                60
 04/12/2021   01:31:27   (  49.90,  11.64) 04/12/2021   01:32:34  (  50.09,  10.61)   76.97                67
 04/12/2021   01:58:50   ( -46.06, -14.90) 04/12/2021   01:59:16  ( -46.16, -14.53)   30.54                26
 04/12/2021   02:50:28   (  49.01, 151.18) 04/12/2021   02:49:36  (  49.13, 151.94)   56.48                52
 04/14/2021   18:15:09   ( -46.08, 101.03) 04/14/2021   18:15:43  ( -46.14, 101.36)   26.30                34
 04/14/2021   19:25:37   (  62.26, 109.59) 04/14/2021   19:24:24  (  62.40, 108.69)   48.98                73
 04/17/2021   10:31:29   ( -46.10,-143.04) 04/17/2021   10:32:11  ( -46.13,-142.75)   22.32                42
 04/17/2021   11:46:42   (  46.00,-143.50) 04/17/2021   11:45:30  (  46.07,-143.94)   35.37                72
 04/20/2021   02:47:48   ( -46.06, -27.09) 04/20/2021   02:48:39  ( -46.13, -26.87)   18.33                51
 04/20/2021   04:03:01   (  46.04, -27.55) 04/20/2021   04:01:57  (  46.13, -28.04)   39.44                64
 04/22/2021   19:04:07   ( -46.09,  88.84) 04/22/2021   19:05:06  ( -46.13,  89.01)   14.15                59