Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 3 28.  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   (  70.93,  39.52) 03/30/2020   09:07:41  (  70.78,  40.33)   34.26                71
 03/30/2020   09:57:06   ( -70.52,-152.49) 03/30/2020   09:57:14  ( -70.50,-152.45)    2.66                 8
 03/30/2020   10:47:49   (  70.40,  15.01) 03/30/2020   10:46:41  (  70.40,  15.04)    1.35                68
 04/02/2020   01:22:56   (  71.02, 155.28) 04/02/2020   01:24:06  (  70.90, 156.41)   42.77                70
 04/02/2020   02:13:30   ( -70.50, -36.55) 04/02/2020   02:13:41  ( -70.52, -36.54)    2.46                11
 04/02/2020   03:04:13   (  70.38, 130.95) 04/02/2020   03:03:08  (  70.41, 130.95)    3.16                65
 04/04/2020   17:39:22   (  71.10, -88.96) 04/04/2020   17:40:31  (  71.03, -87.52)   52.56                69
 04/04/2020   18:29:55   ( -70.54,  79.30) 04/04/2020   18:30:08  ( -70.54,  79.37)    2.71                13
 04/04/2020   19:20:38   (  70.42,-113.20) 04/04/2020   19:19:35  (  70.43,-113.15)    2.00                63
 04/07/2020   09:55:47   (  71.19,  26.80) 04/07/2020   09:56:56  (  71.09,  28.46)   60.65                69
 04/07/2020   10:46:18   ( -70.52,-164.77) 04/07/2020   10:46:35  ( -70.50,-164.81)    2.63                17
 04/07/2020   11:37:01   (  70.40,   2.73) 04/07/2020   11:36:02  (  70.38,   2.66)    3.41                59
 04/10/2020   02:12:14   (  71.32, 142.47) 04/10/2020   02:13:21  (  71.20, 144.52)   74.61                67
 04/10/2020   03:02:43   ( -70.55, -48.92) 04/10/2020   03:03:01  ( -70.56, -48.84)    3.10                18
 04/10/2020   03:53:26   (  70.43, 118.59) 04/10/2020   03:52:28  (  70.44, 118.63)    1.89                58