Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2020 12 31.  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)
 12/31/2020   03:47:57   (  48.98, -23.44) 12/31/2020   03:48:48  (  49.04, -23.83)   28.66                51
 12/31/2020   04:39:35   ( -46.04, 142.64) 12/31/2020   04:39:08  ( -46.06, 142.64)    2.07                27
 12/31/2020   05:09:24   (  58.26, 111.67) 12/31/2020   05:08:12  (  58.53, 113.24)   96.65                72
 01/02/2021   20:04:10   (  49.45,  92.69) 01/02/2021   20:05:09  (  49.51,  92.25)   32.41                59
 01/02/2021   20:55:56   ( -46.05,-101.43) 01/02/2021   20:55:37  ( -46.07,-101.48)    4.43                19
 01/02/2021   21:31:00   (  75.14,-154.71) 01/02/2021   21:29:47  (  75.54,-152.43)   78.08                73
 01/05/2021   12:20:23   (  49.91,-151.18) 01/05/2021   12:21:30  (  49.98,-151.67)   36.12                67
 01/05/2021   13:12:16   ( -46.05,  14.50) 01/05/2021   13:12:05  ( -46.06,  14.40)    7.81                11
 01/05/2021   13:52:29   (  79.35,-129.99) 01/05/2021   13:51:16  (  79.73,-131.56)   52.63                73
 01/08/2021   05:28:37   ( -46.06, 130.43) 01/08/2021   05:28:33  ( -46.11, 130.30)   11.62                 4
 01/08/2021   06:13:51   (  64.68, -51.11) 01/08/2021   06:12:38  (  64.74, -51.59)   23.64                73
 01/10/2021   21:44:54   ( -46.29,-113.55) 01/10/2021   21:44:58  ( -46.33,-113.74)   14.81                 4
 01/10/2021   22:34:15   (  50.95,  55.78) 01/10/2021   22:33:03  (  50.95,  55.79)    0.79                72
 01/13/2021   14:01:07   ( -46.75,   2.56) 01/13/2021   14:01:19  ( -46.77,   2.32)   18.81                12