Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 11 29.  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   19:06:36   (  71.04,-110.79) 11/30/2019   19:07:45  (  70.89,-109.30)   56.73                69
 11/30/2019   19:57:07   ( -70.37,  57.61) 11/30/2019   19:57:22  ( -70.39,  57.59)    2.74                15
 11/30/2019   20:47:51   (  70.30,-134.96) 11/30/2019   20:46:49  (  70.29,-134.91)    1.79                62
 12/03/2019   11:23:04   (  71.17,   4.88) 12/03/2019   11:24:12  (  71.05,   6.83)   71.49                68
 12/03/2019   12:13:33   ( -70.40, 173.47) 12/03/2019   12:13:52  ( -70.40, 173.47)    0.11                19
 12/03/2019   13:04:16   (  70.27, -19.02) 12/03/2019   13:03:19  (  70.30, -19.04)    2.61                57
 12/06/2019   03:39:33   (  71.35, 120.46) 12/06/2019   03:40:39  (  71.24, 122.99)   91.47                66
 12/06/2019   04:29:58   ( -70.43, -70.68) 12/06/2019   04:30:21  ( -70.42, -70.62)    2.22                23
 12/06/2019   05:20:41   (  70.30,  96.83) 12/06/2019   05:19:48  (  70.31,  96.86)    2.04                53
 12/08/2019   20:46:23   ( -70.40,  45.25) 12/08/2019   20:46:52  ( -70.41,  45.23)    0.91                29
 12/08/2019   21:37:06   (  70.28,-147.24) 12/08/2019   21:36:19  (  70.30,-147.29)    2.99                47
 12/11/2019   13:02:49   ( -70.44, 161.09) 12/11/2019   13:03:23  ( -70.41, 161.10)    2.92                34
 12/11/2019   13:53:32   (  70.31, -31.39) 12/11/2019   13:52:50  (  70.30, -31.42)    1.54                42