Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 5 13.  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)
 05/13/2022   05:19:13   ( -71.72, -80.59) 05/13/2022   05:20:24  ( -71.59, -79.82)   30.47                71
 05/13/2022   06:09:52   (  71.35,  87.39) 05/13/2022   06:09:54  (  71.33,  87.40)    2.16                 2
 05/13/2022   07:00:35   ( -71.23,-105.10) 05/13/2022   06:59:23  ( -71.26,-105.08)    2.84                72
 05/15/2022   20:46:14   (  71.44,-131.84) 05/15/2022   20:47:22  (  71.42,-131.84)    2.52                68
 05/15/2022   21:36:57   ( -71.32,  35.68) 05/15/2022   21:36:51  ( -71.35,  35.68)    3.19                 6
 05/15/2022   22:27:35   (  70.90,-156.28) 05/15/2022   22:26:24  (  70.92,-157.35)   38.91                71
 05/18/2022   12:13:19   ( -71.42, 176.45) 05/18/2022   12:14:19  ( -71.43, 176.41)    1.83                60
 05/18/2022   13:04:03   (  71.31, -16.05) 05/18/2022   13:03:46  (  71.33, -16.11)    2.41                17
 05/18/2022   13:54:34   ( -70.57, 152.52) 05/18/2022   13:53:26  ( -70.67, 150.50)   75.40                68
 05/21/2022   03:40:24   (  71.42, 124.70) 05/21/2022   03:41:12  (  71.44, 124.68)    2.29                48
 05/21/2022   04:31:08   ( -71.35, -67.86) 05/21/2022   04:30:42  ( -71.32, -67.87)    2.50                26
 05/23/2022   19:07:30   ( -71.45,  72.89) 05/23/2022   19:08:09  ( -71.42,  72.90)    3.35                39
 05/23/2022   19:58:14   (  71.35,-119.62) 05/23/2022   19:57:35  (  71.37,-119.55)    2.93                39
 05/26/2022   10:34:35   (  71.42,  21.21) 05/26/2022   10:35:02  (  71.45,  21.19)    3.37                27
 05/26/2022   11:25:19   ( -71.34,-171.35) 05/26/2022   11:24:32  ( -71.34,-171.35)    0.37                47