Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 6 15.  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)
 06/16/2020   02:43:17   (  70.69, 135.88) 06/16/2020   02:44:28  (  70.68, 136.09)    7.64                71
 06/16/2020   03:33:57   ( -70.52, -56.52) 06/16/2020   03:33:59  ( -70.52, -56.53)    0.83                 2
 06/16/2020   04:24:40   (  70.37, 111.03) 06/16/2020   04:23:27  (  70.36, 110.89)    5.20                73
 06/18/2020   18:59:45   (  70.93,-108.61) 06/18/2020   19:00:56  (  70.82,-107.82)   31.29                71
 06/18/2020   19:50:21   ( -70.55,  59.34) 06/18/2020   19:50:29  ( -70.55,  59.40)    2.10                 8
 06/18/2020   20:41:04   (  70.41,-133.12) 06/18/2020   20:39:57  (  70.39,-133.19)    2.95                67
 06/21/2020   11:16:13   (  71.18,   6.89) 06/21/2020   11:17:22  (  71.07,   8.45)   57.26                69
 06/21/2020   12:06:44   ( -70.52, 175.29) 06/21/2020   12:07:00  ( -70.52, 175.24)    1.88                16
 06/21/2020   12:57:28   (  70.44, -17.26) 06/21/2020   12:56:27  (  70.42, -17.27)    2.26                61
 06/24/2020   03:32:41   (  71.42, 122.37) 06/24/2020   03:33:48  (  71.31, 124.71)   83.96                67
 06/24/2020   04:23:08   ( -70.55, -68.84) 06/24/2020   04:23:30  ( -70.55, -68.84)    0.41                22
 06/24/2020   05:13:51   (  70.42,  98.68) 06/24/2020   05:12:57  (  70.44,  98.65)    2.49                54
 06/26/2020   20:39:31   ( -70.59,  47.02) 06/26/2020   20:39:59  ( -70.57,  47.07)    2.44                28
 06/26/2020   21:30:14   (  70.46,-145.47) 06/26/2020   21:29:26  (  70.47,-145.44)    1.22                48