Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2023 12 19.  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)
 12/20/2023   17:33:18   ( -74.88,  96.08) 12/20/2023   17:34:30  ( -74.77,  96.85)   25.65                72
 12/20/2023   18:23:59   (  74.60, -95.82) 12/20/2023   18:23:55  (  74.58, -95.94)    3.85                 4
 12/20/2023   19:14:34   ( -74.15,  72.68) 12/20/2023   19:13:25  ( -74.17,  70.76)   58.31                69
 12/23/2023   05:37:09   (  74.65,  95.79) 12/23/2023   05:37:55  (  74.67,  95.74)    3.24                46
 12/23/2023   06:27:52   ( -74.58, -96.72) 12/23/2023   06:27:19  ( -74.57, -96.84)    3.73                33
 12/25/2023   17:41:01   ( -74.64,  94.89) 12/25/2023   17:41:18  ( -74.64,  94.79)    3.06                17
 12/25/2023   18:31:47   (  74.60, -97.71) 12/25/2023   18:30:40  (  74.60, -97.65)    1.90                67
 12/28/2023   04:54:11   ( -74.70, -73.53) 12/28/2023   04:55:17  ( -74.73, -73.53)    3.60                66
 12/28/2023   05:44:56   (  74.62,  93.99) 12/28/2023   05:44:40  (  74.64,  93.91)    3.05                16
 12/30/2023   16:58:06   (  74.70, -74.46) 12/30/2023   16:58:39  (  74.70, -74.48)    0.54                33
 12/30/2023   17:48:49   ( -74.62,  93.07) 12/30/2023   17:48:03  ( -74.61,  92.96)    3.45                46