Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 2 11.  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)
 02/11/2020   04:11:04   (  70.43, 114.09) 02/11/2020   04:11:28  (  70.43, 114.02)    2.93                24
 02/11/2020   05:01:46   ( -70.37, -78.49) 02/11/2020   05:00:57  ( -70.37, -78.44)    2.18                49
 02/13/2020   20:27:29   (  70.44,-130.03) 02/13/2020   20:27:57  (  70.45,-130.09)    2.14                28
 02/13/2020   21:18:11   ( -70.37,  37.40) 02/13/2020   21:17:26  ( -70.39,  37.47)    3.21                45
 02/16/2020   12:43:54   (  70.46, -14.16) 02/16/2020   12:44:26  (  70.48, -14.16)    2.25                32
 02/16/2020   13:34:36   ( -70.38, 153.28) 02/16/2020   13:33:56  ( -70.37, 153.31)    1.77                40
 02/19/2020   05:00:19   (  70.48, 101.72) 02/19/2020   05:00:56  (  70.47, 101.70)    0.67                37
 02/19/2020   05:51:01   ( -70.40, -90.83) 02/19/2020   05:50:26  ( -70.37, -90.82)    2.88                35
 02/21/2020   21:16:43   (  70.50,-142.41) 02/21/2020   21:17:25  (  70.49,-142.41)    1.18                42
 02/21/2020   22:07:25   ( -70.41,  25.05) 02/21/2020   22:06:55  ( -70.39,  25.08)    2.77                30
 02/24/2020   13:33:08   (  70.52, -26.54) 02/24/2020   13:33:55  (  70.52, -26.49)    1.85                47
 02/24/2020   14:23:50   ( -70.42, 140.93) 02/24/2020   14:23:25  ( -70.42, 140.99)    2.55                25