Simultaneous Nadir Overpasses (SNOs) between FY3D and METOP-A
TLE Epoch: 2019 6 20.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(METOP-A) METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 07/03/2019   09:38:43   (  75.14,  22.56) 07/03/2019   09:39:50  (  75.06,  25.28)   78.30                67
 07/03/2019   10:29:25   ( -75.02,-169.77) 07/03/2019   10:30:34  ( -74.95,-167.69)   60.28                69
 07/03/2019   11:20:06   (  74.85,  -1.97) 07/03/2019   11:21:17  (  74.80,  -0.78)   35.03                71
 07/03/2019   12:10:48   ( -74.73, 165.68) 07/03/2019   12:12:01  ( -74.69, 166.26)   17.27                73
 07/03/2019   13:01:30   (  74.60, -26.66) 07/03/2019   13:02:43  (  74.59, -26.69)    1.55                73
 07/03/2019   13:52:14   ( -74.57, 140.72) 07/03/2019   13:53:25  ( -74.58, 140.61)    3.33                71
 07/03/2019   14:42:59   (  74.59, -52.01) 07/03/2019   14:44:05  (  74.57, -52.07)    3.21                66
 07/03/2019   15:33:44   ( -74.62, 115.24) 07/03/2019   15:34:46  ( -74.61, 115.35)    3.26                62
 07/03/2019   16:24:28   (  74.58, -77.36) 07/03/2019   16:25:26  (  74.60, -77.34)    1.84                58
 07/03/2019   17:15:13   ( -74.61,  89.89) 07/03/2019   17:16:08  ( -74.59,  89.96)    2.89                55
 07/03/2019   18:05:57   (  74.58,-102.71) 07/03/2019   18:06:48  (  74.58,-102.73)    0.73                51
 07/03/2019   18:56:42   ( -74.60,  64.54) 07/03/2019   18:57:30  ( -74.57,  64.57)    3.39                48
 07/03/2019   19:47:26   (  74.57,-128.06) 07/03/2019   19:48:10  (  74.56,-128.12)    1.80                44
 07/03/2019   20:38:11   ( -74.59,  39.19) 07/03/2019   20:38:51  ( -74.60,  39.31)    3.64                40
 07/03/2019   21:28:55   (  74.56,-153.41) 07/03/2019   21:29:32  (  74.54,-153.50)    3.40                37
 07/03/2019   22:19:40   ( -74.58,  13.84) 07/03/2019   22:20:13  ( -74.58,  13.92)    2.39                33
 07/03/2019   23:10:24   (  74.55,-178.76) 07/03/2019   23:10:53  (  74.57,-178.77)    2.30                29
 07/04/2019   00:01:09   ( -74.58, -11.51) 07/04/2019   00:01:35  ( -74.56, -11.47)    1.91                26