Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2021 10 2.  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)
 10/02/2021   20:09:23   (  70.32,-122.57) 10/02/2021   20:10:07  (  70.30,-122.54)    2.30                44
 10/02/2021   21:00:03   ( -70.18,  44.98) 10/02/2021   20:59:37  ( -70.19,  44.93)    2.02                26
 10/05/2021   12:25:41   (  70.34,  -6.65) 10/05/2021   12:26:32  (  70.35,  -6.60)    2.07                51
 10/05/2021   13:16:22   ( -70.25, 160.82) 10/05/2021   13:16:02  ( -70.24, 160.88)    2.83                20
 10/05/2021   14:06:50   (  69.29, -30.43) 10/05/2021   14:05:43  (  69.35, -32.69)   88.88                67
 10/08/2021   04:41:58   (  70.37, 109.26) 10/08/2021   04:42:56  (  70.38, 109.34)    3.43                58
 10/08/2021   05:32:39   ( -70.27, -83.26) 10/08/2021   05:32:26  ( -70.28, -83.19)    2.95                13
 10/08/2021   06:23:12   (  69.58,  85.10) 10/08/2021   06:22:03  (  69.61,  83.53)   60.68                69
 10/10/2021   20:58:15   (  70.34,-134.75) 10/10/2021   20:59:22  (  70.36,-134.82)    3.48                67
 10/10/2021   21:48:56   ( -70.24,  32.73) 10/10/2021   21:48:52  ( -70.25,  32.66)    3.06                 4
 10/10/2021   22:39:35   (  69.87,-159.39) 10/10/2021   22:38:23  (  69.92,-160.17)   30.25                72
 10/13/2021   13:14:35   (  70.47, -19.01) 10/13/2021   13:15:46  (  70.44, -18.82)    7.95                71
 10/13/2021   14:05:14   ( -70.26, 148.65) 10/13/2021   14:05:17  ( -70.28, 148.58)    2.99                 3
 10/13/2021   14:55:57   (  70.11, -43.80) 10/13/2021   14:54:44  (  70.16, -43.94)    7.78                73