Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2019 6 27.  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   (  70.53,  33.85) 06/28/2019   09:32:39  (  70.54,  33.89)    1.47                55
 06/28/2019   10:22:26   ( -70.44,-158.69) 06/28/2019   10:22:09  ( -70.42,-158.65)    2.47                17
 06/28/2019   11:12:56   (  69.63,   9.86) 06/28/2019   11:11:48  (  69.66,   7.92)   75.40                68
 07/01/2019   01:48:11   (  70.53, 149.73) 07/01/2019   01:49:09  (  70.52, 149.75)    1.11                58
 07/01/2019   02:38:53   ( -70.44, -42.79) 07/01/2019   02:38:39  ( -70.41, -42.78)    2.41                14
 07/01/2019   03:29:25   (  69.73, 125.59) 07/01/2019   03:28:16  (  69.76, 123.93)   64.04                69
 07/03/2019   18:04:38   (  70.53, -94.38) 07/03/2019   18:05:39  (  70.51, -94.39)    2.70                61
 07/03/2019   18:55:20   ( -70.43,  73.10) 07/03/2019   18:55:09  ( -70.40,  73.08)    3.26                11
 07/03/2019   19:45:53   (  69.78,-118.60) 07/03/2019   19:44:44  (  69.86,-120.06)   56.39                69
 07/06/2019   10:21:04   (  70.53,  21.50) 07/06/2019   10:22:07  (  70.55,  21.54)    2.00                63
 07/06/2019   11:11:46   ( -70.43,-171.01) 07/06/2019   11:11:37  ( -70.44,-170.98)    1.95                 9
 07/06/2019   12:02:21   (  69.89,  -2.87) 07/06/2019   12:01:11  (  69.95,  -4.05)   45.18                70
 07/09/2019   02:37:31   (  70.53, 137.39) 07/09/2019   02:38:37  (  70.52, 137.39)    1.04                66
 07/09/2019   03:28:13   ( -70.42, -55.12) 07/09/2019   03:28:07  ( -70.42, -55.13)    0.26                 6
 07/09/2019   04:18:50   (  70.00, 112.85) 07/09/2019   04:17:39  (  70.04, 111.96)   34.05                71