Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 6 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)
 06/28/2019   09:31:44   (  70.51,  33.89) 06/28/2019   09:32:40  (  70.51,  33.85)    1.71                56
 06/28/2019   10:22:26   ( -70.41,-158.64) 06/28/2019   10:22:10  ( -70.40,-158.69)    2.58                16
 06/28/2019   11:12:56   (  69.60,   9.90) 06/28/2019   11:11:48  (  69.69,   7.96)   76.00                68
 07/01/2019   01:48:10   (  70.51, 149.78) 07/01/2019   01:49:09  (  70.50, 149.71)    2.53                59
 07/01/2019   02:38:52   ( -70.41, -42.75) 07/01/2019   02:38:39  ( -70.39, -42.82)    3.44                13
 07/01/2019   03:29:24   (  69.71, 125.63) 07/01/2019   03:28:15  (  69.79, 123.97)   64.60                69
 07/03/2019   18:04:38   (  70.56, -94.42) 07/03/2019   18:05:38  (  70.54, -94.35)    3.49                60
 07/03/2019   18:55:19   ( -70.40,  73.14) 07/03/2019   18:55:08  ( -70.43,  73.12)    3.14                11
 07/03/2019   19:45:53   (  69.81,-118.64) 07/03/2019   19:44:43  (  69.89,-120.01)   53.25                70
 07/06/2019   10:21:04   (  70.51,  21.54) 07/06/2019   10:22:08  (  70.52,  21.51)    2.27                64
 07/06/2019   11:11:46   ( -70.40,-170.97) 07/06/2019   11:11:38  ( -70.42,-171.01)    2.58                 8
 07/06/2019   12:02:22   (  69.92,  -2.91) 07/06/2019   12:01:11  (  69.98,  -4.00)   41.95                71
 07/09/2019   02:37:31   (  70.51, 137.43) 07/09/2019   02:38:38  (  70.51, 137.36)    2.41                67
 07/09/2019   03:28:13   ( -70.40, -55.08) 07/09/2019   03:28:08  ( -70.40, -55.16)    2.86                 5
 07/09/2019   04:18:51   (  70.03, 112.81) 07/09/2019   04:17:39  (  70.07, 112.01)   30.68                72
 07/11/2019   18:53:57   (  70.51,-106.69) 07/11/2019   18:55:06  (  70.54,-106.70)    3.19                69
 07/11/2019   19:44:40   ( -70.45,  60.72) 07/11/2019   19:44:36  ( -70.44,  60.78)    2.44                 4
 07/11/2019   20:35:18   (  70.08,-131.39) 07/11/2019   20:34:06  (  70.16,-131.98)   24.01                72