Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2025 4 16.  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)
 04/17/2025   13:57:13   ( -77.44, 150.79) 04/17/2025   13:58:17  ( -77.40, 150.79)    4.42                64
 04/17/2025   14:47:57   (  77.36, -41.51) 04/17/2025   14:47:37  (  77.36, -41.70)    4.45                20
 04/20/2025   01:09:28   ( -77.42, -17.12) 04/20/2025   01:09:33  ( -77.41, -17.04)    2.31                 5
 04/20/2025   02:00:06   (  77.09, 151.71) 04/20/2025   01:58:57  (  77.17, 149.73)   50.06                69
 04/22/2025   11:31:00   (  77.44,   7.47) 04/22/2025   11:31:28  (  77.42,   7.49)    1.87                28
 04/22/2025   12:21:42   ( -77.37, 175.13) 04/22/2025   12:20:49  ( -77.38, 174.98)    3.67                53
 04/24/2025   21:52:30   ( -77.47,  31.99) 04/24/2025   21:53:23  ( -77.46,  32.11)    3.20                53
 04/24/2025   22:43:14   (  77.40,-160.33) 04/24/2025   22:42:43  (  77.39,-160.48)    3.64                31
 04/27/2025   08:14:04   (  77.60,  56.07) 04/27/2025   08:15:16  (  77.48,  56.66)   19.50                72
 04/27/2025   09:04:44   ( -77.44,-135.85) 04/27/2025   09:04:37  ( -77.45,-135.79)    1.47                 7
 04/29/2025   19:26:14   (  77.46,-111.23) 04/29/2025   19:26:28  (  77.47,-111.23)    1.27                14