Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 2 7.  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)
 02/07/2022   05:16:16   (  70.89, 100.79) 02/07/2022   05:16:59  (  70.90, 100.78)    1.55                43
 02/07/2022   06:06:59   ( -70.80, -91.74) 02/07/2022   06:06:29  ( -70.78, -91.77)    1.90                30
 02/09/2022   20:43:24   ( -70.93,  48.96) 02/09/2022   20:43:57  ( -70.92,  49.05)    3.13                33
 02/09/2022   21:34:08   (  70.78,-143.49) 02/09/2022   21:33:25  (  70.77,-143.55)    2.93                43
 02/12/2022   12:10:34   (  70.91,  -2.79) 02/12/2022   12:10:54  (  70.89,  -2.75)    2.93                20
 02/12/2022   13:01:16   ( -70.77, 164.76) 02/12/2022   13:00:24  ( -70.78, 164.70)    2.15                52
 02/15/2022   02:47:07   (  71.41, 137.28) 02/15/2022   02:48:17  (  71.33, 138.54)   45.69                70
 02/15/2022   03:37:42   ( -70.91, -54.54) 02/15/2022   03:37:53  ( -70.89, -54.52)    2.23                11
 02/15/2022   04:28:26   (  70.76, 113.01) 02/15/2022   04:27:20  (  70.78, 112.96)    2.88                66
 02/17/2022   18:14:09   ( -71.10,  86.06) 02/17/2022   18:15:21  ( -71.04,  86.33)   11.10                72
 02/17/2022   19:04:52   (  70.90,-106.29) 02/17/2022   19:04:49  (  70.88,-106.28)    1.88                 3
 02/17/2022   19:55:33   ( -70.71,  61.34) 02/17/2022   19:54:20  ( -70.72,  61.10)    8.74                73
 02/20/2022   09:41:17   (  70.98,  34.49) 02/20/2022   09:42:18  (  70.97,  34.46)    2.09                61
 02/20/2022   10:31:59   ( -70.90,-158.06) 02/20/2022   10:31:46  ( -70.91,-157.99)    2.78                13