Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 9 1.  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)
 09/01/2021   05:42:58   ( -76.35, 158.59) 09/01/2021   05:44:11  ( -76.87, 155.82)   92.12                73
 09/01/2021   06:23:29   (  63.06,  91.53) 09/01/2021   06:23:40  (  63.05,  91.55)    1.19                11
 09/01/2021   07:12:05   ( -55.95, -96.15) 09/01/2021   07:11:02  ( -55.95, -96.15)    0.45                63
 09/03/2021   22:40:04   (  64.05,-153.41) 09/03/2021   22:40:26  (  64.05,-153.39)    0.84                22
 09/03/2021   23:28:48   ( -57.41,  18.91) 09/03/2021   23:27:56  ( -57.41,  18.91)    0.40                52
 09/06/2021   14:56:37   (  64.87, -38.24) 09/06/2021   14:57:10  (  64.87, -38.24)    0.05                33
 09/06/2021   15:45:27   ( -58.59, 134.11) 09/06/2021   15:44:46  ( -58.59, 134.08)    1.58                41
 09/09/2021   07:13:06   (  65.47,  77.10) 09/09/2021   07:13:50  (  65.48,  77.08)    1.43                44
 09/09/2021   08:02:26   ( -60.88,-111.56) 09/09/2021   08:01:55  ( -60.88,-111.54)    1.27                31
 09/11/2021   23:29:51   (  66.94,-168.55) 09/11/2021   23:30:45  (  66.94,-168.52)    1.52                54
 09/12/2021   00:18:56   ( -61.55,   3.87) 09/12/2021   00:18:36  ( -61.55,   3.86)    0.75                20
 09/14/2021   15:46:13   (  67.21, -52.92) 09/14/2021   15:47:18  (  67.22, -52.94)    1.02                65