Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 1 18.  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)
 01/19/2020   20:50:44   ( -68.89,  46.30) 01/19/2020   20:51:54  ( -68.85,  46.29)    3.51                70
 01/19/2020   21:41:28   (  68.75,-146.22) 01/19/2020   21:41:21  (  68.75,-146.19)    1.35                 7
 01/19/2020   22:32:06   ( -68.51,  21.43) 01/19/2020   22:30:53  ( -68.53,  21.17)   11.01                73
 01/22/2020   13:07:12   ( -69.10, 161.90) 01/22/2020   13:08:23  ( -69.01, 162.36)   20.41                71
 01/22/2020   13:57:52   (  68.76, -30.32) 01/22/2020   13:57:53  (  68.74, -30.34)    1.62                 1
 01/22/2020   14:48:32   ( -68.61, 137.19) 01/22/2020   14:47:23  ( -68.64, 137.16)    2.85                69
 01/25/2020   05:23:41   ( -69.31, -82.50) 01/25/2020   05:24:52  ( -69.22, -81.51)   40.17                71
 01/25/2020   06:14:17   (  68.76,  85.57) 01/25/2020   06:14:25  (  68.78,  85.58)    2.10                 8
 01/25/2020   07:04:58   ( -68.67,-106.98) 01/25/2020   07:03:55  ( -68.68,-106.92)    2.69                63
 01/27/2020   21:40:11   ( -69.58,  33.02) 01/27/2020   21:41:20  ( -69.48,  34.69)   66.08                69
 01/27/2020   22:30:42   (  68.77,-158.54) 01/27/2020   22:30:58  (  68.76,-158.59)    2.53                16
 01/27/2020   23:21:23   ( -68.67,   8.92) 01/27/2020   23:20:28  ( -68.66,   8.92)    1.35                55
 01/30/2020   13:56:41   ( -69.85, 148.53) 01/30/2020   13:57:48  ( -69.72, 150.89)   92.01                67
 01/30/2020   14:47:07   (  68.78, -42.65) 01/30/2020   14:47:30  (  68.78, -42.70)    1.84                23
 01/30/2020   15:37:48   ( -68.67, 124.81) 01/30/2020   15:37:00  ( -68.68, 124.81)    1.26                48