Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 11 30.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 11/30/2019   19:06:35   (  71.00,-110.72) 11/30/2019   19:07:44  (  70.92,-109.26)   53.93                69
 11/30/2019   19:57:07   ( -70.38,  57.60) 11/30/2019   19:57:22  ( -70.37,  57.55)    2.66                15
 11/30/2019   20:47:50   (  70.26,-134.89) 11/30/2019   20:46:49  (  70.27,-134.95)    2.55                61
 12/03/2019   11:23:03   (  71.13,   4.95) 12/03/2019   11:24:11  (  71.06,   6.84)   68.68                68
 12/03/2019   12:13:33   ( -70.41, 173.45) 12/03/2019   12:13:51  ( -70.40, 173.48)    1.40                18
 12/03/2019   13:04:16   (  70.28, -19.04) 12/03/2019   13:03:18  (  70.30, -19.03)    1.84                58
 12/06/2019   03:39:32   (  71.31, 120.52) 12/06/2019   03:40:38  (  71.21, 122.96)   87.83                66
 12/06/2019   04:29:58   ( -70.39, -70.62) 12/06/2019   04:30:21  ( -70.40, -70.65)    1.62                23
 12/06/2019   05:20:42   (  70.31,  96.81) 12/06/2019   05:19:48  (  70.29,  96.83)    2.68                54
 12/08/2019   20:46:23   ( -70.42,  45.22) 12/08/2019   20:46:50  ( -70.40,  45.23)    1.90                27
 12/08/2019   21:37:06   (  70.29,-147.26) 12/08/2019   21:36:17  (  70.29,-147.29)    0.99                49
 12/11/2019   13:02:48   ( -70.40, 161.15) 12/11/2019   13:03:20  ( -70.42, 161.13)    2.10                32
 12/11/2019   13:53:32   (  70.32, -31.42) 12/11/2019   13:52:47  (  70.31, -31.39)    2.22                45