Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 3 18.  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)
 03/18/2021   22:13:50   ( -49.76,-119.17) 03/18/2021   22:14:55  ( -49.90,-120.02)   63.44                65
 03/18/2021   23:05:36   (  46.03,  46.59) 03/18/2021   23:05:23  (  46.11,  46.12)   37.28                13
 03/18/2021   23:44:50   ( -80.92, -78.26) 03/18/2021   23:43:37  ( -81.45, -79.42)   61.70                73
 03/21/2021   14:57:31   (  46.11, -29.72) 03/21/2021   14:58:04  (  46.20, -29.23)   39.60                33
 03/21/2021   16:06:47   ( -66.19, -17.47) 03/21/2021   16:05:34  ( -66.31, -18.41)   44.14                73
 03/24/2021   07:13:51   (  46.10,  86.21) 03/24/2021   07:14:32  (  46.16,  86.67)   35.73                41
 03/24/2021   08:28:39   ( -47.48,  86.35) 03/24/2021   08:27:26  ( -47.52,  86.05)   22.83                73
 03/26/2021   23:30:11   (  46.10,-157.85) 03/26/2021   23:31:01  (  46.19,-157.46)   31.80                50
 03/27/2021   00:45:24   ( -46.05,-158.30) 03/27/2021   00:44:18  ( -46.13,-158.60)   24.81                66
 03/29/2021   15:46:30   (  46.10, -41.92) 03/29/2021   15:47:28  (  46.17, -41.57)   27.85                58