Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 1 24.  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)
 01/24/2021   07:05:57   ( -48.57, 107.05) 01/24/2021   07:06:41  ( -48.65, 106.59)   34.99                44
 01/24/2021   07:57:23   (  46.03, -86.68) 01/24/2021   07:56:48  (  46.05, -86.77)    7.68                35
 01/26/2021   23:22:08   ( -49.14,-136.78) 01/26/2021   23:23:02  ( -49.20,-137.31)   39.40                54
 01/27/2021   00:13:44   (  46.01,  29.25) 01/27/2021   00:13:19  (  46.01,  29.09)   11.96                25
 01/27/2021   00:45:34   ( -65.01,  -7.10) 01/27/2021   00:44:21  ( -65.28,  -5.40)   85.04                73
 01/29/2021   15:38:20   ( -49.64, -20.63) 01/29/2021   15:39:23  ( -49.75, -21.21)   43.46                63
 01/29/2021   16:30:04   (  46.05, 145.19) 01/29/2021   16:29:48  (  46.08, 145.00)   15.58                16
 01/29/2021   17:08:20   ( -81.22,  42.41) 01/29/2021   17:07:07  ( -81.79,  42.62)   63.10                73
 02/01/2021   07:54:31   ( -50.20,  95.55) 02/01/2021   07:55:44  ( -50.29,  94.90)   47.62                73
 02/01/2021   08:46:25   (  46.03, -98.88) 02/01/2021   08:46:18  (  46.09, -99.12)   19.57                 7
 02/01/2021   09:30:50   ( -67.56,  82.68) 02/01/2021   09:29:36  ( -67.70,  81.97)   33.91                74
 02/04/2021   01:02:42   (  46.19,  17.11) 02/04/2021   01:02:45  (  46.22,  16.80)   23.71                 3
 02/04/2021   01:52:57   ( -48.06,-174.83) 02/04/2021   01:51:44  ( -48.05,-174.87)    3.31                73
 02/06/2021   17:18:53   (  46.74, 133.26) 02/06/2021   17:19:05  (  46.81, 132.90)   28.14                12