Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 7 9.  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)
 07/09/2021   14:22:58   ( -55.60, 155.89) 07/09/2021   14:23:28  ( -55.60, 155.89)    0.12                30
 07/09/2021   15:11:42   (  48.57, -33.35) 07/09/2021   15:10:58  (  48.58, -33.24)    7.43                44
 07/12/2021   06:39:36   ( -56.69, -88.80) 07/12/2021   06:40:17  ( -56.70, -88.83)    1.96                41
 07/12/2021   07:27:49   (  47.90,  82.88) 07/12/2021   07:27:17  (  47.91,  82.89)    1.48                32
 07/14/2021   22:56:36   ( -59.02,  25.66) 07/14/2021   22:57:27  ( -59.02,  25.67)    0.40                51
 07/14/2021   23:44:53   (  50.52,-162.33) 07/14/2021   23:44:31  (  50.51,-162.30)    1.80                22
 07/17/2021   15:13:10   ( -59.88, 141.01) 07/17/2021   15:14:12  ( -59.89, 140.98)    1.49                62
 07/17/2021   16:01:31   (  51.69, -46.94) 07/17/2021   16:01:20  (  51.70, -46.95)    0.84                11
 07/20/2021   07:30:04   ( -61.92,-104.58) 07/20/2021   07:31:16  ( -61.91,-104.56)    1.00                72
 07/20/2021   08:18:34   (  54.24,  67.72) 07/20/2021   08:18:33  (  54.24,  67.72)    0.48                 1
 07/22/2021   23:52:45   ( -80.24, -36.91) 07/22/2021   23:53:58  ( -80.66, -35.40)   54.19                73
 07/23/2021   00:35:33   (  56.55,-177.64) 07/23/2021   00:35:42  (  56.54,-177.61)    1.89                 9