Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 3 6.  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)
 03/08/2021   04:45:04   ( -46.11, -56.69) 03/08/2021   04:46:11  ( -46.21, -56.26)   35.18                67
 03/08/2021   06:00:16   (  46.04, -57.14) 03/08/2021   05:59:28  (  46.11, -57.39)   20.89                48
 03/10/2021   21:02:29   ( -49.82,  57.68) 03/10/2021   21:03:42  ( -49.89,  58.16)   35.66                73
 03/10/2021   22:16:37   (  46.00,  58.78) 03/10/2021   22:15:58  (  46.04,  58.47)   24.51                39
 03/13/2021   13:24:00   ( -67.24, 161.32) 03/13/2021   13:25:13  ( -67.40, 162.42)   50.70                73
 03/13/2021   14:32:57   (  46.02, 174.72) 03/13/2021   14:32:26  (  46.08, 174.36)   28.19                31
 03/16/2021   05:57:42   ( -49.15, 124.62) 03/16/2021   05:58:36  ( -49.31, 123.86)   58.02                54
 03/16/2021   06:49:17   (  46.04, -69.34) 03/16/2021   06:48:54  (  46.10, -69.75)   31.89                23
 03/16/2021   07:16:38   ( -49.78, -95.81) 03/16/2021   07:15:33  ( -49.94, -94.82)   73.65                65
 03/18/2021   22:13:54   ( -49.56,-119.26) 03/18/2021   22:14:56  ( -49.74,-120.08)   61.70                62
 03/18/2021   23:05:36   (  46.05,  46.59) 03/18/2021   23:05:21  (  46.12,  46.14)   35.56                15