Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 10 16.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 10/16/2020   14:21:19   (  69.09, -35.95) 10/16/2020   14:22:30  (  69.10, -35.99)    1.93                71
 10/16/2020   15:12:00   ( -68.98, 131.52) 10/16/2020   15:12:00  ( -68.99, 131.50)    1.08                 0
 10/16/2020   16:02:41   (  68.71, -60.81) 10/16/2020   16:01:29  (  68.77, -61.13)   14.51                72
 10/19/2020   06:37:45   (  69.29,  79.68) 10/19/2020   06:38:56  (  69.23,  80.06)   16.30                71
 10/19/2020   07:28:23   ( -69.02,-112.61) 10/19/2020   07:28:28  ( -69.02,-112.59)    1.06                 5
 10/19/2020   08:19:06   (  68.86,  54.91) 10/19/2020   08:17:56  (  68.85,  54.85)    2.96                70
 10/21/2020   22:54:10   (  69.50,-164.69) 10/21/2020   22:55:21  (  69.36,-163.89)   34.75                71
 10/21/2020   23:44:45   ( -69.06,   3.25) 10/21/2020   23:44:55  ( -69.04,   3.32)    3.27                10
 10/22/2020   00:35:28   (  68.91, 170.76) 10/22/2020   00:34:22  (  68.92, 170.82)    2.82                66
 10/24/2020   15:10:36   (  69.70, -49.08) 10/24/2020   15:11:45  (  69.60, -47.69)   54.74                69
 10/24/2020   16:01:07   ( -69.04, 119.19) 10/24/2020   16:01:23  ( -69.06, 119.23)    2.29                16
 10/24/2020   16:51:50   (  68.90, -73.31) 10/24/2020   16:50:51  (  68.88, -73.35)    2.74                59
 10/27/2020   07:27:02   (  69.91,  66.53) 10/27/2020   07:28:10  (  69.78,  68.43)   74.19                68
 10/27/2020   08:17:30   ( -69.08,-124.95) 10/27/2020   08:17:51  ( -69.07,-124.88)    3.29                21
 10/27/2020   09:08:13   (  68.95,  42.54) 10/27/2020   09:07:18  (  68.95,  42.61)    2.76                55
 10/29/2020   23:43:28   (  70.12,-177.87) 10/29/2020   23:44:34  (  70.00,-175.37)   95.40                66
 10/30/2020   00:33:52   ( -69.07,  -9.02) 10/30/2020   00:34:19  ( -69.08,  -8.99)    1.39                27
 10/30/2020   01:24:35   (  68.95, 158.47) 10/30/2020   01:23:46  (  68.95, 158.50)    1.46                49