Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2020 12 29.  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   (  48.99, -23.44) 12/31/2020   03:48:48  (  49.05, -23.82)   28.63                51
 12/31/2020   04:39:35   ( -46.05, 142.65) 12/31/2020   04:39:08  ( -46.07, 142.64)    2.15                27
 12/31/2020   05:09:24   (  58.25, 111.67) 12/31/2020   05:08:12  (  58.52, 113.25)   96.69                72
 01/02/2021   20:04:10   (  49.46,  92.69) 01/02/2021   20:05:09  (  49.52,  92.25)   32.39                59
 01/02/2021   20:55:57   ( -46.00,-101.45) 01/02/2021   20:55:38  ( -46.02,-101.50)    4.38                19
 01/02/2021   21:31:02   (  75.23,-154.97) 01/02/2021   21:29:49  (  75.64,-152.69)   77.97                73
 01/05/2021   12:20:22   (  49.92,-151.18) 01/05/2021   12:21:29  (  49.99,-151.67)   36.08                67
 01/05/2021   13:12:17   ( -46.00,  14.48) 01/05/2021   13:12:06  ( -46.02,  14.38)    7.68                11
 01/05/2021   13:52:34   (  79.18,-131.28) 01/05/2021   13:51:21  (  79.55,-132.86)   52.18                73
 01/08/2021   05:28:37   ( -46.06, 130.43) 01/08/2021   05:28:34  ( -46.06, 130.28)   11.37                 3
 01/08/2021   06:13:59   (  64.24, -51.53) 01/08/2021   06:12:46  (  64.29, -51.99)   22.82                73
 01/10/2021   21:44:54   ( -46.28,-113.55) 01/10/2021   21:44:58  ( -46.34,-113.73)   15.05                 4