Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 1 14.  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)
 01/14/2020   12:17:53   ( -68.83, 174.57) 01/14/2020   12:18:49  ( -68.84, 174.55)    1.04                56
 01/14/2020   13:08:37   (  68.70, -17.94) 01/14/2020   13:08:17  (  68.68, -17.99)    2.59                20
 01/14/2020   13:59:06   ( -67.97, 150.32) 01/14/2020   13:57:57  ( -68.02, 148.84)   62.22                69
 01/17/2020   04:34:19   ( -68.88, -69.59) 01/17/2020   04:35:26  ( -68.89, -69.54)    2.39                67
 01/17/2020   05:25:03   (  68.75,  97.89) 01/17/2020   05:24:54  (  68.73,  97.91)    1.89                 9
 01/17/2020   06:15:40   ( -68.45, -94.39) 01/17/2020   06:14:27  ( -68.46, -94.79)   16.50                73
 01/19/2020   20:50:52   ( -69.30,  45.72) 01/19/2020   20:52:03  ( -69.15,  46.62)   39.26                71
 01/19/2020   21:41:28   (  68.75,-146.21) 01/19/2020   21:41:35  (  68.77,-146.22)    2.73                 7
 01/19/2020   22:32:09   ( -68.66,  21.23) 01/19/2020   22:31:05  ( -68.68,  21.30)    3.35                64
 01/22/2020   13:57:53   (  68.80, -30.38) 01/22/2020   13:58:19  (  68.80, -30.37)    0.42                26
 01/22/2020   14:48:33   ( -68.65, 137.14) 01/22/2020   14:47:50  ( -68.65, 137.08)    2.52                43
 01/25/2020   06:14:19   (  68.85,  85.45) 01/25/2020   06:15:07  (  68.87,  85.51)    3.12                48
 01/25/2020   07:04:59   ( -68.70,-107.03) 01/25/2020   07:04:38  ( -68.73,-107.03)    3.28                21
 01/25/2020   07:55:27   (  67.72,  61.54) 01/25/2020   07:54:20  (  67.79,  59.49)   86.74                67
 01/27/2020   22:30:47   (  69.02,-158.87) 01/27/2020   22:31:58  (  68.98,-158.56)   12.85                71
 01/27/2020   23:21:25   ( -68.75,   8.81) 01/27/2020   23:21:31  ( -68.74,   8.76)    2.38                 6
 01/28/2020   00:12:09   (  68.63, 176.27) 01/28/2020   00:10:58  (  68.64, 176.27)    0.21                71