Simultaneous Nadir Overpasses (SNOs) between FY3D and METOP-C
TLE Epoch: 2019 9 23.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(METOP-C) METOP-C Lat/Lon    Distance(km)  Time Diff(sec)
 09/23/2019   01:59:24   (  72.90, 142.67) 09/23/2019   01:58:27  (  72.89, 142.71)    1.59                57
 09/23/2019   02:50:07   ( -72.90, -50.00) 09/23/2019   02:49:10  ( -72.88, -50.00)    2.31                57
 09/23/2019   03:40:53   (  72.89, 117.32) 09/23/2019   03:39:49  (  72.87, 117.33)    2.69                64
 09/23/2019   04:31:36   ( -72.89, -75.35) 09/23/2019   04:30:31  ( -72.91, -75.28)    2.95                65
 09/23/2019   05:22:22   (  72.89,  91.96) 09/23/2019   05:21:10  (  72.90,  92.05)    3.10                72
 09/23/2019   06:13:05   ( -72.88,-100.71) 09/23/2019   06:11:53  ( -72.88,-100.66)    1.47                72
 09/23/2019   07:03:48   (  72.73,  66.92) 09/23/2019   07:02:35  (  72.73,  66.34)   19.09                73
 09/23/2019   07:54:31   ( -72.72,-125.75) 09/23/2019   07:53:18  ( -72.71,-126.36)   20.37                73
 09/23/2019   08:45:12   (  72.47,  42.08) 09/23/2019   08:44:02  (  72.45,  40.44)   54.99                70
 09/23/2019   09:35:55   ( -72.46,-150.59) 09/23/2019   09:34:45  ( -72.44,-152.26)   56.10                70
 09/23/2019   10:26:35   (  72.15,  17.33) 09/23/2019   10:25:29  (  72.17,  14.56)   94.35                66
 09/23/2019   11:17:18   ( -72.15,-175.35) 09/23/2019   11:16:12  ( -72.16,-178.14)   95.21                66