Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 3 14.  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)
 03/16/2020   04:16:46   ( -68.87, -65.12) 03/16/2020   04:17:32  ( -68.85, -65.07)    3.11                46
 03/16/2020   05:07:29   (  68.75, 102.36) 03/16/2020   05:06:59  (  68.74, 102.43)    3.10                30
 03/16/2020   05:57:52   ( -67.64, -88.90) 03/16/2020   05:56:46  ( -67.69, -91.19)   96.89                66
 03/18/2020   20:33:10   ( -68.85,  50.81) 03/18/2020   20:34:00  ( -68.85,  50.82)    0.68                50
 03/18/2020   21:23:53   (  68.73,-141.71) 03/18/2020   21:23:27  (  68.73,-141.69)    1.23                26
 03/18/2020   22:14:19   ( -67.77,  26.83) 03/18/2020   22:13:11  ( -67.86,  24.89)   82.12                68
 03/21/2020   12:49:34   ( -68.88, 166.68) 03/21/2020   12:50:27  ( -68.85, 166.70)    3.03                53
 03/21/2020   13:40:16   (  68.71, -25.78) 03/21/2020   13:39:54  (  68.73, -25.80)    2.75                22
 03/21/2020   14:30:45   ( -67.91, 142.57) 03/21/2020   14:29:36  ( -67.97, 140.91)   69.61                69
 03/24/2020   05:05:58   ( -68.86, -77.39) 03/24/2020   05:06:55  ( -68.85, -77.41)    1.27                57
 03/24/2020   05:56:41   (  68.74,  90.08) 03/24/2020   05:56:22  (  68.72,  90.07)    2.15                19
 03/24/2020   06:47:12   ( -68.05,-101.70) 03/24/2020   06:46:02  ( -68.07,-103.08)   57.19                70
 03/26/2020   21:22:23   ( -68.89,  38.47) 03/26/2020   21:23:22  ( -68.90,  38.54)    2.82                59
 03/26/2020   22:13:05   (  68.72,-153.99) 03/26/2020   22:12:50  (  68.71,-154.05)    2.65                15
 03/26/2020   23:03:38   ( -68.14,  14.09) 03/26/2020   23:02:27  ( -68.23,  13.00)   46.33                71