Simultaneous Nadir Overpasses (SNOs) between FY3D and METOP-A
TLE Epoch: 2019 10 11.  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)
 10/24/2019   14:54:49   ( -75.49, 122.41) 10/24/2019   14:55:55  ( -75.45, 125.63)   89.88                66
 10/24/2019   15:45:30   (  75.31, -69.72) 10/24/2019   15:46:39  (  75.26, -67.62)   59.78                69
 10/24/2019   16:36:12   ( -75.20,  97.92) 10/24/2019   16:37:23  ( -75.15,  99.40)   42.65                71
 10/24/2019   17:26:54   (  75.06, -94.38) 10/24/2019   17:28:06  (  75.00, -93.69)   20.84                72
 10/24/2019   18:17:36   ( -74.95,  73.25) 10/24/2019   18:18:49  ( -74.94,  73.47)    6.55                73
 10/24/2019   19:08:20   (  74.91,-119.32) 10/24/2019   19:09:30  (  74.88,-119.35)    3.30                70
 10/24/2019   19:59:04   ( -74.90,  48.03) 10/24/2019   20:00:11  ( -74.92,  48.08)    2.99                67
 10/24/2019   20:49:49   (  74.91,-144.67) 10/24/2019   20:50:51  (  74.91,-144.61)    2.04                62
 10/24/2019   21:40:33   ( -74.89,  22.68) 10/24/2019   21:41:33  ( -74.90,  22.69)    1.37                60
 10/24/2019   22:31:18   (  74.90,-170.03) 10/24/2019   22:32:13  (  74.90,-170.00)    0.85                55
 10/24/2019   23:22:02   ( -74.89,  -2.67) 10/24/2019   23:22:55  ( -74.89,  -2.70)    0.75                53
 10/25/2019   00:12:47   (  74.89, 164.62) 10/25/2019   00:13:35  (  74.88, 164.61)    1.78                48
 10/25/2019   01:03:31   ( -74.88, -28.03) 10/25/2019   01:04:17  ( -74.87, -28.09)    2.24                46
 10/25/2019   01:54:16   (  74.89, 139.27) 10/25/2019   01:54:56  (  74.91, 139.35)    3.35                40