Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 9 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)
 10/01/2020   09:01:24   (  70.65,  41.75) 10/01/2020   09:02:09  (  70.63,  41.73)    2.44                45
 10/01/2020   09:52:05   ( -70.56,-150.77) 10/01/2020   09:51:38  ( -70.58,-150.72)    3.07                27
 10/04/2020   01:17:47   (  70.68, 157.62) 10/04/2020   01:18:38  (  70.66, 157.66)    2.44                51
 10/04/2020   02:08:28   ( -70.58, -34.90) 10/04/2020   02:08:08  ( -70.56, -34.87)    2.66                20
 10/04/2020   02:58:56   (  69.62, 133.88) 10/04/2020   02:57:49  (  69.68, 131.52)   91.47                67
 10/06/2020   17:34:08   (  70.66, -86.43) 10/06/2020   17:35:07  (  70.64, -86.50)    3.31                59
 10/06/2020   18:24:50   ( -70.60,  80.98) 10/06/2020   18:24:36  ( -70.59,  81.06)    3.33                14
 10/06/2020   19:15:22   (  69.87,-110.56) 10/06/2020   19:14:13  (  69.93,-112.25)   64.99                69
 10/09/2020   09:50:31   (  70.69,  29.44) 10/09/2020   09:51:36  (  70.67,  29.42)    2.69                65
 10/09/2020   10:41:12   ( -70.58,-163.06) 10/09/2020   10:41:06  ( -70.56,-163.10)    2.08                 6
 10/09/2020   11:31:49   (  70.11,   4.99) 10/09/2020   11:30:38  (  70.18,   3.98)   38.73                71
 10/12/2020   02:06:54   (  70.72, 145.30) 10/12/2020   02:08:05  (  70.69, 145.34)    3.96                71
 10/12/2020   02:57:35   ( -70.60, -47.19) 10/12/2020   02:57:35  ( -70.59, -47.18)    1.73                 0
 10/12/2020   03:48:16   (  70.35, 120.52) 10/12/2020   03:47:03  (  70.42, 120.22)   13.69                73