Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2023 1 21.  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)
 01/22/2023   04:58:51   (  72.74, 105.09) 01/22/2023   04:59:03  (  72.74, 105.19)    3.31                12
 01/22/2023   05:49:34   ( -72.63, -87.35) 01/22/2023   05:48:28  ( -72.65, -87.32)    2.90                66
 01/24/2023   17:03:04   ( -72.75, 104.05) 01/24/2023   17:03:41  ( -72.73, 104.01)    2.48                37
 01/24/2023   17:53:49   (  72.69, -88.51) 01/24/2023   17:53:04  (  72.68, -88.44)    2.39                45
 01/27/2023   05:07:18   (  72.78, 102.97) 01/27/2023   05:08:16  (  72.77, 102.90)    2.38                58
 01/27/2023   05:58:02   ( -72.70, -89.57) 01/27/2023   05:57:41  ( -72.69, -89.59)    1.64                21
 01/29/2023   17:11:37   ( -73.10, 101.24) 01/29/2023   17:12:48  ( -73.01, 102.20)   32.60                71
 01/29/2023   18:02:16   (  72.74, -90.67) 01/29/2023   18:02:15  (  72.73, -90.68)    1.33                 1
 01/29/2023   18:52:55   ( -72.42,  77.31) 01/29/2023   18:51:43  ( -72.50,  76.54)   27.52                72
 02/01/2023   06:06:29   ( -72.78, -91.77) 02/01/2023   06:06:50  ( -72.78, -91.76)    0.38                21
 02/01/2023   06:57:13   (  72.72,  75.66) 02/01/2023   06:56:12  (  72.71,  75.76)    3.71                61
 02/03/2023   18:10:41   (  72.79, -92.82) 02/03/2023   18:11:22  (  72.78, -92.92)    3.60                41
 02/03/2023   19:01:25   ( -72.72,  74.66) 02/03/2023   19:00:47  ( -72.72,  74.62)    1.31                38