Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2021 10 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)
 10/08/2021   04:41:57   (  70.33, 109.33) 10/08/2021   04:42:57  (  70.33, 109.25)    2.96                60
 10/08/2021   05:32:38   ( -70.24, -83.21) 10/08/2021   05:32:26  ( -70.26, -83.21)    2.97                12
 10/08/2021   06:23:12   (  69.59,  85.08) 10/08/2021   06:22:03  (  69.61,  83.53)   60.27                69
 10/10/2021   20:58:15   (  70.35,-134.76) 10/10/2021   20:59:22  (  70.36,-134.83)    2.42                67
 10/10/2021   21:48:56   ( -70.26,  32.70) 10/10/2021   21:48:52  ( -70.24,  32.64)    2.94                 4
 10/10/2021   22:39:34   (  69.83,-159.32) 10/10/2021   22:38:23  (  69.91,-160.17)   33.89                71
 10/13/2021   13:14:35   (  70.48, -19.03) 10/13/2021   13:15:46  (  70.43, -18.83)    9.23                71
 10/13/2021   14:05:14   ( -70.28, 148.62) 10/13/2021   14:05:17  ( -70.27, 148.56)    2.60                 3
 10/13/2021   14:55:57   (  70.12, -43.82) 10/13/2021   14:54:44  (  70.16, -43.95)    6.34                73
 10/16/2021   05:30:57   (  70.72,  96.53) 10/16/2021   05:32:08  (  70.61,  97.32)   31.43                71
 10/16/2021   06:21:32   ( -70.31, -95.47) 10/16/2021   06:21:42  ( -70.29, -95.53)    3.15                10
 10/16/2021   07:12:16   (  70.20,  72.00) 10/16/2021   07:11:08  (  70.23,  72.03)    2.89                68
 10/18/2021   21:47:18   (  70.97,-147.92) 10/18/2021   21:48:27  (  70.89,-146.38)   56.80                69
 10/18/2021   22:37:49   ( -70.33,  20.43) 10/18/2021   22:38:05  ( -70.35,  20.45)    2.01                16
 10/18/2021   23:28:33   (  70.24,-172.10) 10/18/2021   23:27:32  (  70.24,-172.08)    1.07                61
 10/21/2021   14:03:41   (  71.26, -32.48) 10/21/2021   14:04:47  (  71.17, -30.06)   87.13                66
 10/21/2021   14:54:07   ( -70.36, 136.34) 10/21/2021   14:54:30  ( -70.36, 136.33)    0.91                23
 10/21/2021   15:44:50   (  70.22, -56.13) 10/21/2021   15:43:57  (  70.24, -56.19)    3.18                53