Simultaneous Nadir Overpasses (SNOs) between FY3D and AQUA
TLE Epoch: 2021 3 15.  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   05:57:40   ( -49.23, 124.66) 03/16/2021   05:58:36  ( -49.37, 123.87)   59.23                56
 03/16/2021   06:49:17   (  46.00, -69.35) 03/16/2021   06:48:55  (  46.10, -69.76)   33.23                22
 03/16/2021   07:16:35   ( -49.65, -95.75) 03/16/2021   07:15:32  ( -49.84, -94.77)   73.29                63
 03/18/2021   22:13:51   ( -49.76,-119.17) 03/18/2021   22:14:56  ( -49.89,-120.03)   63.28                65
 03/18/2021   23:05:37   (  46.01,  46.59) 03/18/2021   23:05:24  (  46.10,  46.12)   37.11                13
 03/18/2021   23:44:52   ( -80.91, -78.69) 03/18/2021   23:43:39  ( -81.43, -79.87)   61.59                73
 03/21/2021   14:57:30   (  46.07, -29.71) 03/21/2021   14:58:03  (  46.16, -29.21)   39.64                33
 03/21/2021   16:06:48   ( -66.12, -17.55) 03/21/2021   16:05:35  ( -66.25, -18.48)   43.94                73
 03/24/2021   07:13:50   (  46.06,  86.23) 03/24/2021   07:14:31  (  46.12,  86.68)   35.80                41
 03/24/2021   08:28:40   ( -47.41,  86.32) 03/24/2021   08:27:27  ( -47.44,  86.02)   22.56                73
 03/26/2021   23:30:10   (  46.06,-157.84) 03/26/2021   23:31:00  (  46.15,-157.45)   31.85                50