Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 11 26.  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)
 11/28/2020   11:34:07   ( -70.03,-175.28) 11/28/2020   11:35:15  ( -69.93,-173.19)   80.35                68
 11/28/2020   12:24:35   (  69.11,  -6.64) 11/28/2020   12:24:55  (  69.11,  -6.65)    0.95                20
 11/28/2020   13:15:17   ( -69.02, 160.81) 11/28/2020   13:14:25  ( -69.00, 160.84)    2.71                52
 12/01/2020   04:40:57   (  69.13, 109.26) 12/01/2020   04:41:22  (  69.16, 109.30)    3.10                25
 12/01/2020   05:31:38   ( -68.98, -83.22) 12/01/2020   05:30:53  ( -69.00, -83.28)    2.89                45
 12/03/2020   20:57:19   (  69.15,-134.85) 12/03/2020   20:57:50  (  69.15,-134.84)    0.93                31
 12/03/2020   21:48:01   ( -69.06,  32.61) 12/03/2020   21:47:20  ( -69.04,  32.66)    2.70                41
 12/06/2020   13:13:41   (  69.18, -18.96) 12/06/2020   13:14:17  (  69.19, -18.91)    2.15                36
 12/06/2020   14:04:22   ( -69.03, 148.57) 12/06/2020   14:03:48  ( -69.03, 148.52)    1.93                34
 12/09/2020   05:30:01   (  69.15,  97.01) 12/09/2020   05:30:44  (  69.16,  96.95)    2.77                43
 12/09/2020   06:20:43   ( -69.05, -95.54) 12/09/2020   06:20:14  ( -69.06, -95.55)    1.26                29