Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 3 16.  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)
 03/16/2021   05:57:39   ( -49.25, 124.67) 03/16/2021   05:58:35  ( -49.39, 123.88)   59.29                56
 03/16/2021   06:49:16   (  46.03, -69.34) 03/16/2021   06:48:54  (  46.13, -69.75)   33.29                22
 03/16/2021   07:16:34   ( -49.62, -95.74) 03/16/2021   07:15:31  ( -49.81, -94.76)   73.26                63
 03/18/2021   22:13:50   ( -49.78,-119.16) 03/18/2021   22:14:55  ( -49.92,-120.02)   63.33                65
 03/18/2021   23:05:36   (  46.04,  46.60) 03/18/2021   23:05:23  (  46.12,  46.13)   37.17                13
 03/18/2021   23:44:49   ( -80.94, -77.80) 03/18/2021   23:43:36  ( -81.47, -78.93)   61.71                73
 03/21/2021   14:57:31   (  46.09, -29.72) 03/21/2021   14:58:04  (  46.19, -29.22)   39.69                33
 03/21/2021   16:06:44   ( -66.37, -17.28) 03/21/2021   16:05:31  ( -66.50, -18.22)   44.26                73
 03/24/2021   07:13:51   (  46.09,  86.22) 03/24/2021   07:14:32  (  46.16,  86.67)   35.77                41
 03/24/2021   08:28:33   ( -47.85,  86.50) 03/24/2021   08:27:20  ( -47.88,  86.19)   23.16                73
 03/26/2021   23:30:10   (  46.08,-157.85) 03/26/2021   23:30:59  (  46.13,-157.44)   32.00                49
 03/27/2021   00:45:24   ( -46.01,-158.31) 03/27/2021   00:44:18  ( -46.08,-158.62)   24.40                66
 03/29/2021   15:46:30   (  46.08, -41.91) 03/29/2021   15:47:28  (  46.17, -41.57)   28.20                58