Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 11 23.  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)
 11/25/2019   10:33:39   (  70.69,  18.01) 11/25/2019   10:34:51  (  70.60,  18.51)   20.84                72
 11/25/2019   11:24:17   ( -70.38,-174.18) 11/25/2019   11:24:23  ( -70.38,-174.19)    0.30                 6
 11/25/2019   12:15:00   (  70.26,  -6.68) 11/25/2019   12:13:50  (  70.27,  -6.69)    1.72                70
 11/28/2019   02:50:06   (  70.81, 133.69) 11/28/2019   02:51:17  (  70.67, 134.49)   33.58                71
 11/28/2019   03:40:42   ( -70.40, -58.32) 11/28/2019   03:40:50  ( -70.39, -58.28)    1.66                 8
 11/28/2019   04:31:25   (  70.28, 109.17) 11/28/2019   04:30:17  (  70.29, 109.21)    1.41                68
 11/30/2019   19:06:33   (  70.89,-110.54) 11/30/2019   19:07:43  (  70.79,-109.44)   41.70                70
 11/30/2019   19:57:07   ( -70.37,  57.62) 11/30/2019   19:57:19  ( -70.35,  57.54)    3.28                12
 11/30/2019   20:47:51   (  70.31,-134.97) 11/30/2019   20:46:45  (  70.30,-134.89)    2.99                66
 12/03/2019   11:23:00   (  70.97,   5.22) 12/03/2019   11:24:10  (  70.85,   6.54)   49.56                70
 12/03/2019   12:13:33   ( -70.40, 173.47) 12/03/2019   12:13:46  ( -70.42, 173.52)    3.34                13
 12/03/2019   13:04:16   (  70.28, -19.03) 12/03/2019   13:03:14  (  70.25, -19.08)    3.32                62
 12/06/2019   03:39:27   (  71.05, 120.99) 12/06/2019   03:40:36  (  70.97, 122.60)   59.22                69
 12/06/2019   04:29:58   ( -70.37, -70.60) 12/06/2019   04:30:15  ( -70.38, -70.66)    2.33                17
 12/06/2019   05:20:42   (  70.31,  96.82) 12/06/2019   05:19:41  (  70.31,  96.90)    3.12                61