Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 2 18.  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)
 02/20/2021   02:39:50   (  49.29,  -6.01) 02/20/2021   02:40:47  (  49.41,  -6.66)   48.96                57
 02/20/2021   03:31:35   ( -46.00, 159.92) 02/20/2021   03:31:13  ( -46.06, 159.65)   21.80                22
 02/20/2021   04:05:10   (  70.74, 116.30) 02/20/2021   04:03:57  (  71.04, 118.17)   76.21                73
 02/22/2021   18:56:01   (  49.84, 110.16) 02/22/2021   18:57:07  (  49.95, 109.45)   52.81                66
 02/22/2021   19:47:55   ( -46.04, -84.13) 02/22/2021   19:47:42  ( -46.07, -84.46)   25.63                13
 02/22/2021   20:27:23   (  80.58, 144.67) 02/22/2021   20:26:10  (  81.06, 143.35)   58.38                73
 02/25/2021   12:04:16   ( -46.01,  31.79) 02/25/2021   12:04:11  ( -46.07,  31.42)   29.04                 5
 02/25/2021   12:49:26   (  64.80,-149.61) 02/25/2021   12:48:13  (  64.90,-150.30)   34.74                73
 02/28/2021   04:20:33   ( -46.22, 147.80) 02/28/2021   04:20:36  ( -46.31, 147.39)   32.88                 3
 02/28/2021   05:11:17   (  46.04, -44.94) 02/28/2021   05:10:04  (  46.05, -45.05)    8.65                73
 03/02/2021   20:36:44   ( -46.72, -96.07) 03/02/2021   20:36:56  ( -46.78, -96.55)   36.99                12