Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 6 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)
 06/13/2020   10:26:53   (  70.60,  20.12) 06/13/2020   10:28:00  (  70.60,  20.08)    1.60                67
 06/13/2020   11:17:34   ( -70.48,-172.37) 06/13/2020   11:17:30  ( -70.48,-172.45)    2.95                 4
 06/13/2020   12:08:13   (  70.12,  -4.49) 06/13/2020   12:07:01  (  70.16,  -5.28)   29.99                72
 06/16/2020   02:43:17   (  70.68, 135.90) 06/16/2020   02:44:29  (  70.63, 136.01)    6.56                72
 06/16/2020   03:33:57   ( -70.50, -56.50) 06/16/2020   03:33:59  ( -70.52, -56.52)    1.96                 2
 06/16/2020   04:24:40   (  70.36, 111.05) 06/16/2020   04:23:27  (  70.36, 110.89)    5.79                73
 06/18/2020   18:59:45   (  70.91,-108.58) 06/18/2020   19:00:56  (  70.82,-107.82)   29.56                71
 06/18/2020   19:50:21   ( -70.53,  59.38) 06/18/2020   19:50:29  ( -70.55,  59.40)    3.09                 8
 06/18/2020   20:41:05   (  70.44,-133.17) 06/18/2020   20:39:56  (  70.45,-133.11)    2.59                69
 06/21/2020   11:16:13   (  71.15,   6.93) 06/21/2020   11:17:22  (  71.07,   8.44)   55.25                69
 06/21/2020   12:06:45   ( -70.55, 175.25) 06/21/2020   12:07:00  ( -70.53, 175.24)    2.45                15
 06/21/2020   12:57:28   (  70.42, -17.22) 06/21/2020   12:56:27  (  70.42, -17.27)    1.79                61
 06/24/2020   03:32:41   (  71.39, 122.43) 06/24/2020   03:33:48  (  71.31, 124.70)   81.43                67
 06/24/2020   04:23:09   ( -70.57, -68.87) 06/24/2020   04:23:30  ( -70.55, -68.84)    2.45                21
 06/24/2020   05:13:52   (  70.44,  98.64) 06/24/2020   05:12:57  (  70.44,  98.64)    0.40                55