Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 10 18.  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)
 10/18/2019   22:43:37   (  70.43,-164.08) 10/18/2019   22:44:16  (  70.44,-164.05)    1.71                39
 10/18/2019   23:34:18   ( -70.30,   3.44) 10/18/2019   23:33:46  ( -70.33,   3.41)    3.24                32
 10/21/2019   15:00:02   (  70.43, -48.19) 10/21/2019   15:00:44  (  70.45, -48.15)    3.10                42
 10/21/2019   15:50:44   ( -70.34, 119.26) 10/21/2019   15:50:14  ( -70.34, 119.32)    2.11                30
 10/24/2019   07:16:28   (  70.43,  67.70) 10/24/2019   07:17:14  (  70.41,  67.66)    2.75                46
 10/24/2019   08:07:10   ( -70.34,-124.84) 10/24/2019   08:06:43  ( -70.35,-124.79)    2.64                27
 10/26/2019   23:32:54   (  70.43,-176.41) 10/26/2019   23:33:43  (  70.42,-176.45)    2.30                49
 10/27/2019   00:23:36   ( -70.34,  -8.94) 10/27/2019   00:23:13  ( -70.31,  -8.97)    3.24                23
 10/29/2019   15:49:20   (  70.44, -60.53) 10/29/2019   15:50:12  (  70.42, -60.56)    2.31                52
 10/29/2019   16:40:02   ( -70.33, 106.95) 10/29/2019   16:39:42  ( -70.31, 106.92)    2.58                20