Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 4 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)
 04/14/2021   18:15:10   ( -46.10, 101.02) 04/14/2021   18:15:44  ( -46.17, 101.35)   26.38                34
 04/14/2021   19:25:30   (  62.68, 109.94) 04/14/2021   19:24:17  (  62.84, 109.03)   49.35                73
 04/17/2021   10:31:30   ( -46.11,-143.05) 04/17/2021   10:32:12  ( -46.16,-142.77)   22.29                42
 04/17/2021   11:46:42   (  46.05,-143.48) 04/17/2021   11:45:30  (  46.10,-143.93)   35.47                72
 04/20/2021   02:47:48   ( -46.07, -27.09) 04/20/2021   02:48:38  ( -46.10, -26.86)   18.24                50
 04/20/2021   04:03:01   (  46.04, -27.55) 04/20/2021   04:01:57  (  46.10, -28.05)   39.38                64
 04/22/2021   19:04:08   ( -46.08,  88.84) 04/22/2021   19:05:06  ( -46.10,  89.02)   14.35                58
 04/22/2021   19:55:12   (  47.07,-104.26) 04/22/2021   19:54:54  (  47.19,-103.77)   39.47                18
 04/25/2021   11:20:28   ( -46.10,-155.23) 04/25/2021   11:21:34  ( -46.11,-155.10)   10.47                66