Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2020 1 19.  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)
 01/20/2020   08:05:44   (  54.14, -86.93) 01/20/2020   08:06:57  (  54.06, -86.43)   33.63                73
 01/20/2020   08:51:40   ( -70.22,  94.55) 01/20/2020   08:51:44  ( -70.22,  94.49)    2.28                 4
 01/20/2020   09:41:42   (  72.38, -94.35) 01/20/2020   09:40:29  (  72.38, -94.35)    0.26                73
 01/23/2020   01:08:24   ( -69.22,-151.04) 01/23/2020   01:08:32  ( -69.23,-150.99)    2.10                 8
 01/23/2020   01:58:07   (  72.38,  21.54) 01/23/2020   01:56:59  (  72.37,  21.52)    0.51                68
 01/25/2020   17:24:50   ( -69.17, -35.21) 01/25/2020   17:25:03  ( -69.17, -35.19)    1.03                13
 01/25/2020   18:14:32   (  72.37, 137.43) 01/25/2020   18:13:29  (  72.36, 137.39)    1.59                63
 01/28/2020   09:41:13   ( -69.27,  80.84) 01/28/2020   09:41:31  ( -69.27,  80.83)    0.44                18
 01/28/2020   10:31:11   (  71.64,-108.05) 01/28/2020   10:30:12  (  71.65,-107.99)    2.31                59
 01/31/2020   01:57:34   ( -69.43,-163.04) 01/31/2020   01:57:57  ( -69.42,-163.09)    2.26                23