Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2023 12 12.  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)
 12/13/2023   06:12:25   ( -75.17, -94.67) 12/13/2023   06:13:32  ( -75.07, -92.08)   75.09                67
 12/13/2023   07:02:59   (  74.56,  74.41) 12/13/2023   07:03:03  (  74.57,  74.35)    2.60                 4
 12/13/2023   07:53:40   ( -74.40,-117.87) 12/13/2023   07:52:27  ( -74.48,-118.22)   13.21                73
 12/15/2023   18:16:10   (  74.63, -94.04) 12/15/2023   18:17:05  (  74.65, -94.01)    2.64                55
 12/15/2023   19:06:53   ( -74.57,  73.43) 12/15/2023   19:06:29  ( -74.56,  73.42)    1.62                24
 12/18/2023   06:20:04   ( -74.64, -95.01) 12/18/2023   06:20:31  ( -74.62, -94.97)    3.05                27
 12/18/2023   07:10:49   (  74.55,  72.54) 12/18/2023   07:09:54  (  74.53,  72.48)    3.28                55
 12/20/2023   17:33:19   ( -74.91,  95.98) 12/20/2023   17:34:30  ( -74.82,  96.98)   30.75                71
 12/20/2023   18:24:00   (  74.64, -95.93) 12/20/2023   18:23:55  (  74.63, -95.83)    3.16                 5
 12/20/2023   19:14:34   ( -74.14,  72.72) 12/20/2023   19:13:25  ( -74.23,  70.89)   56.46                69
 12/23/2023   05:37:10   (  74.67,  95.72) 12/23/2023   05:37:57  (  74.66,  95.70)    1.74                47
 12/23/2023   06:27:53   ( -74.60, -96.77) 12/23/2023   06:27:20  ( -74.62, -96.73)    2.18                33
 12/25/2023   17:41:03   ( -74.64,  94.88) 12/25/2023   17:41:22  ( -74.64,  94.77)    3.35                19