Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 1 12.  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)
 01/13/2021   14:01:07   ( -46.70,   2.55) 01/13/2021   14:01:19  ( -46.74,   2.31)   19.04                12
 01/13/2021   14:51:00   (  49.52, 171.07) 01/13/2021   14:49:55  (  49.53, 171.07)    0.10                65
 01/16/2021   06:17:21   ( -47.10, 118.64) 01/16/2021   06:17:40  ( -47.18, 118.36)   22.94                19
 01/16/2021   07:07:41   (  48.37, -73.51) 01/16/2021   07:06:43  (  48.37, -73.52)    1.17                58
 01/18/2021   22:33:34   ( -47.56,-125.24) 01/18/2021   22:34:01  ( -47.62,-125.59)   26.58                27
 01/18/2021   23:24:42   (  46.05,  41.47) 01/18/2021   23:23:50  (  46.07,  41.48)    1.76                52
 01/21/2021   14:49:48   ( -47.96,  -9.15) 01/21/2021   14:50:22  ( -48.04,  -9.54)   30.24                34
 01/21/2021   15:40:57   (  46.39, 157.53) 01/21/2021   15:40:13  (  46.38, 157.48)    4.53                44
 01/24/2021   07:05:59   ( -48.47, 106.99) 01/24/2021   07:06:41  ( -48.53, 106.54)   33.96                42