Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 2 12.  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)
 02/14/2021   18:07:27   (  48.31, 121.70) 02/14/2021   18:08:06  (  48.41, 121.17)   40.97                39
 02/14/2021   18:58:54   ( -46.05, -71.92) 02/14/2021   18:58:15  ( -46.08, -72.10)   14.39                39
 02/17/2021   10:23:39   (  48.80,-122.16) 02/17/2021   10:24:27  (  48.92,-122.74)   44.99                48
 02/17/2021   11:15:15   ( -46.03,  44.00) 02/17/2021   11:14:45  ( -46.05,  43.77)   18.23                30
 02/17/2021   11:42:49   (  50.59,  17.18) 02/17/2021   11:41:37  (  50.80,  18.34)   85.02                72
 02/20/2021   02:39:50   (  49.29,  -6.01) 02/20/2021   02:40:47  (  49.41,  -6.66)   48.89                57
 02/20/2021   03:31:35   ( -46.00, 159.92) 02/20/2021   03:31:13  ( -46.07, 159.65)   21.76                22
 02/20/2021   04:05:13   (  70.90, 116.03) 02/20/2021   04:04:00  (  71.20, 117.92)   76.11                73
 02/22/2021   18:56:01   (  49.83, 110.16) 02/22/2021   18:57:07  (  49.96, 109.45)   52.74                66
 02/22/2021   19:47:55   ( -46.04, -84.14) 02/22/2021   19:47:42  ( -46.08, -84.46)   25.45                13
 02/22/2021   20:27:31   (  80.40, 141.98) 02/22/2021   20:26:18  (  80.86, 140.57)   57.84                73
 02/25/2021   12:04:16   ( -46.01,  31.78) 02/25/2021   12:04:11  ( -46.09,  31.43)   29.08                 5