Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 2 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)
 02/22/2021   18:56:01   (  49.86, 110.18) 02/22/2021   18:57:07  (  49.99, 109.46)   52.89                66
 02/22/2021   19:47:55   ( -46.06, -84.12) 02/22/2021   19:47:42  ( -46.10, -84.45)   25.62                13
 02/22/2021   20:27:31   (  80.41, 142.15) 02/22/2021   20:26:18  (  80.88, 140.74)   57.94                73
 02/25/2021   12:04:15   ( -46.03,  31.80) 02/25/2021   12:04:10  ( -46.11,  31.43)   29.21                 5
 02/25/2021   12:49:38   (  64.10,-150.27) 02/25/2021   12:48:25  (  64.19,-150.93)   33.78                73
 02/28/2021   04:20:31   ( -46.28, 147.83) 02/28/2021   04:20:35  ( -46.34, 147.41)   33.14                 4
 02/28/2021   05:11:16   (  46.04, -44.94) 02/28/2021   05:10:03  (  46.08, -45.04)    9.14                73
 03/02/2021   20:36:44   ( -46.71, -96.07) 03/02/2021   20:36:56  ( -46.80, -96.54)   37.14                12
 03/02/2021   21:27:37   (  46.00,  70.98) 03/02/2021   21:26:33  (  46.01,  70.82)   12.51                64
 03/05/2021   12:28:44   ( -46.07,-172.61) 03/05/2021   12:29:42  ( -46.13,-172.12)   38.55                58