Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2019 8 20.  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)
 08/20/2019   03:32:57   ( -68.81, -54.12) 08/20/2019   03:33:40  ( -68.84, -54.12)    3.42                43
 08/20/2019   04:23:41   (  68.70, 113.34) 08/20/2019   04:23:08  (  68.69, 113.34)    0.79                33
 08/22/2019   19:49:24   ( -68.83,  61.74) 08/22/2019   19:50:09  ( -68.81,  61.72)    2.63                45
 08/22/2019   20:40:08   (  68.71,-130.79) 08/22/2019   20:39:36  (  68.70,-130.77)    1.32                32
 08/22/2019   21:30:30   ( -67.59,  37.96) 08/22/2019   21:29:23  ( -67.64,  35.61)   99.67                67
 08/25/2019   12:05:50   ( -68.84, 177.61) 08/25/2019   12:06:36  ( -68.82, 177.62)    2.56                46
 08/25/2019   12:56:34   (  68.73, -14.93) 08/25/2019   12:56:03  (  68.72, -14.87)    2.56                31
 08/25/2019   13:46:56   ( -67.60, 153.82) 08/25/2019   13:45:50  ( -67.66, 151.50)   98.30                66
 08/28/2019   04:22:16   ( -68.81, -66.46) 08/28/2019   04:23:04  ( -68.83, -66.49)    3.18                48
 08/28/2019   05:13:00   (  68.69, 101.01) 08/28/2019   05:12:32  (  68.67, 100.95)    3.17                28
 08/28/2019   06:03:24   ( -67.67, -90.38) 08/28/2019   06:02:17  ( -67.72, -92.54)   91.44                67
 08/30/2019   20:38:43   ( -68.82,  49.41) 08/30/2019   20:39:32  ( -68.84,  49.40)    2.01                49
 08/30/2019   21:29:27   (  68.70,-143.12) 08/30/2019   21:28:59  (  68.73,-143.09)    3.09                28
 08/30/2019   22:19:52   ( -67.74,  25.43) 08/30/2019   22:18:44  ( -67.79,  23.41)   84.76                68
 09/02/2019   12:55:10   ( -68.84, 165.27) 09/02/2019   12:56:00  ( -68.84, 165.29)    0.86                50
 09/02/2019   13:45:54   (  68.72, -27.26) 09/02/2019   13:45:27  (  68.73, -27.21)    2.30                27
 09/02/2019   14:36:19   ( -67.76, 141.29) 09/02/2019   14:35:11  ( -67.85, 139.36)   81.61                68