Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 3 16.  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)
 03/16/2020   23:44:23   (  70.58,-179.42) 03/16/2020   23:45:29  (  70.55,-179.41)    3.54                66
 03/17/2020   00:35:05   ( -70.48, -11.94) 03/17/2020   00:34:58  ( -70.48, -11.87)    2.57                 7
 03/17/2020   01:25:42   (  70.05, 156.05) 03/17/2020   01:24:30  (  70.11, 155.23)   31.77                72
 03/19/2020   16:00:47   (  70.56, -63.48) 03/19/2020   16:01:56  (  70.58, -63.48)    2.83                69
 03/19/2020   16:51:29   ( -70.46, 104.00) 03/19/2020   16:51:26  ( -70.47, 103.99)    1.62                 3
 03/19/2020   17:42:08   (  70.13, -88.18) 03/19/2020   17:40:56  (  70.20, -88.76)   23.31                72
 03/22/2020   08:17:11   (  70.59,  52.37) 03/22/2020   08:18:23  (  70.56,  52.37)    3.27                72
 03/22/2020   09:07:53   ( -70.48,-140.14) 03/22/2020   09:07:52  ( -70.50,-140.08)    3.18                 1
 03/22/2020   09:58:34   (  70.27,  27.51) 03/22/2020   09:57:21  (  70.29,  27.25)   10.25                73
 03/25/2020   00:33:38   (  70.73, 168.05) 03/25/2020   00:34:49  (  70.64, 168.37)   14.91                71
 03/25/2020   01:24:17   ( -70.46, -24.20) 03/25/2020   01:24:20  ( -70.48, -24.24)    2.51                 3
 03/25/2020   02:15:00   (  70.35, 143.28) 03/25/2020   02:13:47  (  70.37, 143.25)    2.29                73
 03/27/2020   16:50:04   (  70.81, -76.18) 03/27/2020   16:51:15  (  70.72, -75.63)   22.63                71
 03/27/2020   17:40:42   ( -70.49,  91.65) 03/27/2020   17:40:47  ( -70.51,  91.69)    2.21                 5
 03/27/2020   18:31:25   (  70.39,-100.87) 03/27/2020   18:30:14  (  70.40,-100.84)    1.39                71
 03/30/2020   09:06:30   (  70.90,  39.58) 03/30/2020   09:07:41  (  70.80,  40.37)   30.89                71
 03/30/2020   09:57:06   ( -70.48,-152.42) 03/30/2020   09:57:15  ( -70.48,-152.48)    2.41                 9
 03/30/2020   10:47:49   (  70.37,  15.07) 03/30/2020   10:46:42  (  70.36,  14.99)    2.87                67