Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 6 6.  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)
 06/08/2020   01:54:06   (  70.57, 148.35) 06/08/2020   01:55:00  (  70.59, 148.31)    2.81                54
 06/08/2020   02:44:47   ( -70.46, -44.16) 06/08/2020   02:44:30  ( -70.48, -44.23)    2.78                17
 06/08/2020   03:35:17   (  69.61, 124.45) 06/08/2020   03:34:10  (  69.66, 122.26)   84.62                67
 06/10/2020   18:10:29   (  70.60, -95.79) 06/10/2020   18:11:31  (  70.58, -95.82)    2.02                62
 06/10/2020   19:01:10   ( -70.49,  71.71) 06/10/2020   19:01:01  ( -70.47,  71.64)    2.92                 9
 06/10/2020   19:51:45   (  69.91,-120.08) 06/10/2020   19:50:35  (  69.99,-121.41)   51.46                70
 06/13/2020   10:26:53   (  70.63,  20.07) 06/13/2020   10:28:03  (  70.60,  20.07)    3.40                70
 06/13/2020   11:17:34   ( -70.51,-172.42) 06/13/2020   11:17:33  ( -70.49,-172.46)    2.73                 1
 06/13/2020   12:08:14   (  70.21,  -4.62) 06/13/2020   12:07:02  (  70.28,  -5.13)   20.55                72
 06/16/2020   02:43:21   (  70.87, 135.58) 06/16/2020   02:44:32  (  70.80, 136.24)   25.32                71
 06/16/2020   03:33:58   ( -70.54, -56.55) 06/16/2020   03:34:05  ( -70.53, -56.53)    1.15                 7
 06/16/2020   04:24:41   (  70.40, 110.99) 06/16/2020   04:23:32  (  70.42, 110.96)    3.33                69
 06/18/2020   18:59:51   (  71.22,-109.09) 06/18/2020   19:00:59  (  71.12,-107.38)   62.38                68
 06/18/2020   19:50:21   ( -70.51,  59.40) 06/18/2020   19:50:38  ( -70.53,  59.34)    3.15                17
 06/18/2020   20:41:05   (  70.43,-133.16) 06/18/2020   20:40:05  (  70.42,-133.17)    0.90                60