Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 10 16.  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)
 10/16/2019   06:27:11   (  70.41,  80.05) 10/16/2019   06:27:47  (  70.44,  80.07)    3.18                36
 10/16/2019   07:17:53   ( -70.34,-112.51) 10/16/2019   07:17:17  ( -70.33,-112.47)    2.36                36
 10/18/2019   22:43:36   (  70.41,-164.05) 10/18/2019   22:44:16  (  70.40,-164.11)    2.26                40
 10/18/2019   23:34:18   ( -70.33,   3.39) 10/18/2019   23:33:45  ( -70.35,   3.44)    2.44                33
 10/21/2019   15:00:02   (  70.41, -48.16) 10/21/2019   15:00:45  (  70.42, -48.21)    2.07                43
 10/21/2019   15:50:44   ( -70.32, 119.30) 10/21/2019   15:50:15  ( -70.31, 119.26)    2.26                29
 10/24/2019   07:16:28   (  70.41,  67.74) 10/24/2019   07:17:14  (  70.42,  67.68)    2.72                46
 10/24/2019   08:07:10   ( -70.31,-124.80) 10/24/2019   08:06:44  ( -70.32,-124.84)    1.48                26
 10/26/2019   23:32:54   (  70.41,-176.37) 10/26/2019   23:33:43  (  70.43,-176.43)    3.35                49
 10/27/2019   00:23:36   ( -70.31,  -8.90) 10/27/2019   00:23:13  ( -70.32,  -8.95)    2.53                23
 10/29/2019   15:49:20   (  70.46, -60.56) 10/29/2019   15:50:11  (  70.43, -60.55)    3.11                51
 10/29/2019   16:40:02   ( -70.35, 106.92) 10/29/2019   16:39:41  ( -70.33, 106.93)    3.21                21