Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 1 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)
 01/28/2020   17:58:25   ( -70.92,  86.48) 01/28/2020   17:59:36  ( -70.79,  87.52)   40.57                71
 01/28/2020   18:49:02   (  70.44,-105.43) 01/28/2020   18:49:08  (  70.42,-105.40)    2.59                 6
 01/28/2020   19:39:42   ( -70.29,  62.13) 01/28/2020   19:38:38  ( -70.30,  62.07)    2.92                64
 01/31/2020   10:14:52   ( -71.02,-157.80) 01/31/2020   10:16:02  ( -70.91,-156.42)   51.80                70
 01/31/2020   11:05:27   (  70.44,  10.46) 01/31/2020   11:05:36  (  70.42,  10.49)    2.82                 9
 01/31/2020   11:56:08   ( -70.34, 177.95) 01/31/2020   11:55:06  ( -70.31, 177.97)    3.29                62
 02/03/2020   02:31:18   ( -71.13, -42.08) 02/03/2020   02:32:27  ( -71.02, -40.36)   63.36                69
 02/03/2020   03:21:50   (  70.40, 126.43) 02/03/2020   03:22:03  (  70.42, 126.38)    3.19                13
 02/03/2020   04:12:32   ( -70.34, -66.16) 02/03/2020   04:11:33  ( -70.32, -66.14)    3.04                59
 02/05/2020   18:47:45   ( -71.24,  73.63) 02/05/2020   18:48:53  ( -71.13,  75.70)   75.02                68
 02/05/2020   19:38:15   (  70.41,-117.69) 02/05/2020   19:38:31  (  70.42,-117.74)    2.41                16
 02/05/2020   20:28:57   ( -70.35,  49.73) 02/05/2020   20:28:01  ( -70.32,  49.74)    3.31                56
 02/08/2020   11:04:12   ( -71.35,-170.66) 02/08/2020   11:05:19  ( -71.24,-168.25)   86.68                67
 02/08/2020   11:54:40   (  70.42,  -1.80) 02/08/2020   11:54:59  (  70.42,  -1.87)    2.32                19
 02/08/2020   12:45:22   ( -70.35, 165.63) 02/08/2020   12:44:28  ( -70.37, 165.70)    3.28                54