Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 3 29.  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)
 03/30/2020   09:06:30   (  70.91,  39.56) 03/30/2020   09:07:41  (  70.80,  40.37)   31.81                71
 03/30/2020   09:57:06   ( -70.50,-152.45) 03/30/2020   09:57:15  ( -70.47,-152.49)    3.24                 9
 03/30/2020   10:47:49   (  70.38,  15.05) 03/30/2020   10:46:42  (  70.37,  15.00)    2.38                67
 04/02/2020   01:22:55   (  71.00, 155.32) 04/02/2020   01:24:05  (  70.93, 156.45)   41.52                70
 04/02/2020   02:13:29   ( -70.48, -36.52) 04/02/2020   02:13:41  ( -70.49, -36.58)    2.71                12
 04/02/2020   03:04:13   (  70.41, 130.90) 04/02/2020   03:03:08  (  70.38, 130.90)    3.30                65
 04/04/2020   17:39:22   (  71.13, -89.01) 04/04/2020   17:40:31  (  71.00, -87.57)   54.29                69
 04/04/2020   18:29:54   ( -70.52,  79.33) 04/04/2020   18:30:08  ( -70.51,  79.33)    0.40                14
 04/04/2020   19:20:37   (  70.40,-113.17) 04/04/2020   19:19:35  (  70.40,-113.20)    1.09                62
 04/07/2020   09:55:48   (  71.22,  26.74) 04/07/2020   09:56:56  (  71.12,  28.50)   64.08                68
 04/07/2020   10:46:19   ( -70.55,-164.82) 04/07/2020   10:46:35  ( -70.53,-164.77)    3.26                16
 04/07/2020   11:37:02   (  70.43,   2.68) 04/07/2020   11:36:02  (  70.41,   2.70)    2.67                60
 04/10/2020   02:12:14   (  71.31, 142.50) 04/10/2020   02:13:22  (  71.18, 144.47)   72.20                68
 04/10/2020   03:02:43   ( -70.53, -48.89) 04/10/2020   03:03:02  ( -70.53, -48.88)    0.27                19
 04/10/2020   03:53:26   (  70.41, 118.62) 04/10/2020   03:52:29  (  70.41, 118.59)    1.01                57