Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2023 12 15.  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)
 12/15/2023   18:16:10   (  74.62, -94.02) 12/15/2023   18:17:06  (  74.60, -94.12)    3.66                56
 12/15/2023   19:06:53   ( -74.57,  73.45) 12/15/2023   19:06:29  ( -74.56,  73.42)    1.36                24
 12/18/2023   06:20:04   ( -74.64, -95.01) 12/18/2023   06:20:31  ( -74.61, -94.99)    3.61                27
 12/18/2023   07:10:49   (  74.55,  72.55) 12/18/2023   07:09:53  (  74.58,  72.59)    3.14                56
 12/20/2023   17:33:19   ( -74.91,  95.97) 12/20/2023   17:34:30  ( -74.80,  96.94)   30.75                71
 12/20/2023   18:23:59   (  74.59, -95.80) 12/20/2023   18:23:55  (  74.61, -95.87)    3.16                 4
 12/20/2023   19:14:34   ( -74.14,  72.71) 12/20/2023   19:13:25  ( -74.21,  70.84)   57.07                69
 12/23/2023   05:37:10   (  74.68,  95.70) 12/23/2023   05:37:56  (  74.68,  95.76)    1.82                46
 12/23/2023   06:27:53   ( -74.61, -96.80) 12/23/2023   06:27:20  ( -74.59, -96.81)    3.06                33
 12/25/2023   17:41:02   ( -74.66,  94.83) 12/25/2023   17:41:20  ( -74.64,  94.77)    2.78                18
 12/25/2023   18:31:47   (  74.58, -97.65) 12/25/2023   18:30:42  (  74.60, -97.67)    1.84                65
 12/28/2023   04:54:12   ( -74.71, -73.56) 12/28/2023   04:55:20  ( -74.72, -73.56)    1.57                68
 12/28/2023   05:44:57   (  74.64,  93.96) 12/28/2023   05:44:43  (  74.63,  93.87)    2.72                14