Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2020 5 7.  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)
 05/08/2020   18:35:28   (  68.86, -99.68) 05/08/2020   18:36:03  (  68.89, -99.63)    3.34                35
 05/08/2020   19:26:08   ( -68.72,  67.84) 05/08/2020   19:25:34  ( -68.72,  67.80)    1.82                34
 05/11/2020   10:51:52   (  68.88,  16.21) 05/11/2020   10:52:32  (  68.89,  16.26)    2.83                40
 05/11/2020   11:42:32   ( -68.73,-176.27) 05/11/2020   11:42:03  ( -68.73,-176.31)    1.61                29
 05/14/2020   03:08:16   (  68.89, 132.10) 05/14/2020   03:09:01  (  68.90, 132.15)    2.31                45
 05/14/2020   03:58:55   ( -68.75, -60.38) 05/14/2020   03:58:31  ( -68.74, -60.42)    1.58                24
 05/14/2020   04:49:21   (  67.65, 108.32) 05/14/2020   04:48:15  (  67.67, 105.96)   99.96                66
 05/16/2020   19:24:39   (  68.91,-112.02) 05/16/2020   19:25:29  (  68.90,-111.96)    2.70                50
 05/16/2020   20:15:19   ( -68.76,  55.50) 05/16/2020   20:15:00  ( -68.75,  55.47)    2.33                19
 05/16/2020   21:05:48   (  67.84,-135.99) 05/16/2020   21:04:40  (  67.90,-137.90)   80.24                68
 05/19/2020   11:41:02   (  68.88,   3.93) 05/19/2020   11:41:58  (  68.90,   3.92)    2.35                56
 05/19/2020   12:31:43   ( -68.78, 171.38) 05/19/2020   12:31:28  ( -68.81, 171.43)    2.95                15
 05/19/2020   13:22:15   (  68.02, -20.31) 05/19/2020   13:21:06  (  68.07, -21.82)   62.90                69