Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 11 17.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 11/19/2019   05:42:24   (  68.85,  93.40) 11/19/2019   05:43:12  (  68.82,  93.44)    3.26                48
 11/19/2019   06:33:05   ( -68.69, -99.08) 11/19/2019   06:32:42  ( -68.71, -99.06)    2.42                23
 11/19/2019   07:23:32   (  67.71,  69.49) 11/19/2019   07:22:24  (  67.76,  67.45)   86.31                68
 11/21/2019   21:58:49   (  68.81,-150.65) 11/21/2019   21:59:40  (  68.83,-150.66)    2.90                51
 11/21/2019   22:49:31   ( -68.71,  16.80) 11/21/2019   22:49:10  ( -68.73,  16.85)    3.30                21
 11/21/2019   23:39:59   (  67.78,-174.70) 11/21/2019   23:38:51  (  67.83,-176.58)   79.38                68
 11/24/2019   14:15:15   (  68.83, -34.78) 11/24/2019   14:16:08  (  68.84, -34.76)    2.13                53
 11/24/2019   15:05:56   ( -68.67, 132.74) 11/24/2019   15:05:39  ( -68.69, 132.68)    3.07                17
 11/24/2019   15:56:26   (  67.85, -58.89) 11/24/2019   15:55:18  (  67.90, -60.63)   72.68                68
 11/27/2019   06:31:41   (  68.84,  81.09) 11/27/2019   06:32:36  (  68.84,  81.13)    1.64                55
 11/27/2019   07:22:22   ( -68.69,-111.39) 11/27/2019   07:22:07  ( -68.69,-111.43)    1.82                15
 11/27/2019   08:12:53   (  67.92,  56.91) 11/27/2019   08:11:44  (  68.01,  55.39)   64.08                69
 11/29/2019   22:48:06   (  68.86,-163.04) 11/29/2019   22:49:03  (  68.84,-162.99)    3.11                57
 11/29/2019   23:38:47   ( -68.71,   4.48) 11/29/2019   23:38:34  ( -68.69,   4.45)    2.58                13
 11/30/2019   00:29:20   (  68.05, 172.65) 11/30/2019   00:28:10  (  68.06, 171.34)   54.38                70