Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2020 12 20.  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)
 12/20/2020   10:43:06   (  47.10,-127.95) 12/20/2020   10:43:24  (  47.11,-128.11)   12.47                18
 12/20/2020   11:32:28   ( -51.98,  41.53) 12/20/2020   11:31:31  ( -51.98,  41.55)    1.92                57
 12/23/2020   02:59:20   (  47.52, -11.85) 12/23/2020   02:59:46  (  47.56, -12.06)   16.46                26
 12/23/2020   03:49:08   ( -50.90, 156.94) 12/23/2020   03:48:19  ( -50.91, 156.95)    0.49                49
 12/25/2020   19:15:33   (  47.99, 104.28) 12/25/2020   19:16:07  (  48.06, 104.02)   20.73                34
 12/25/2020   20:05:44   ( -50.06, -87.52) 12/25/2020   20:05:03  ( -50.06, -87.54)    1.42                41
 12/28/2020   11:31:44   (  48.52,-139.57) 12/28/2020   11:32:27  (  48.56,-139.90)   24.70                43
 12/28/2020   12:22:46   ( -47.66,  27.37) 12/28/2020   12:22:12  ( -47.66,  27.37)    0.19                34
 12/31/2020   03:47:57   (  48.99, -23.44) 12/31/2020   03:48:48  (  49.05, -23.83)   28.51                51
 12/31/2020   04:39:36   ( -46.00, 142.62) 12/31/2020   04:39:09  ( -46.02, 142.62)    2.12                27
 12/31/2020   05:09:25   (  58.31, 111.63) 12/31/2020   05:08:13  (  58.58, 113.21)   96.77                72
 01/02/2021   20:04:11   (  49.41,  92.66) 01/02/2021   20:05:10  (  49.47,  92.23)   32.23                59
 01/02/2021   20:55:57   ( -46.01,-101.45) 01/02/2021   20:55:38  ( -46.03,-101.50)    4.39                19