Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2021 9 1.  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)
 09/03/2021   08:19:21   ( -70.18,-125.06) 09/03/2021   08:19:55  ( -70.19,-124.99)    3.31                34
 09/03/2021   09:10:04   (  70.03,  42.47) 09/03/2021   09:09:23  (  70.03,  42.43)    1.41                41
 09/06/2021   00:35:38   ( -70.17,  -9.11) 09/06/2021   00:36:20  ( -70.17,  -9.14)    1.17                42
 09/06/2021   01:26:22   (  70.08, 158.34) 09/06/2021   01:25:47  (  70.06, 158.35)    2.33                35
 09/08/2021   16:51:57   ( -70.22, 106.76) 09/08/2021   16:52:45  ( -70.20, 106.78)    2.61                48
 09/08/2021   17:42:40   (  70.08, -85.71) 09/08/2021   17:42:12  (  70.08, -85.73)    1.29                28
 09/11/2021   09:08:15   ( -70.21,-137.29) 09/11/2021   09:09:10  ( -70.22,-137.30)    0.68                55
 09/11/2021   09:58:59   (  70.12,  30.16) 09/11/2021   09:58:37  (  70.10,  30.18)    2.65                22
 09/11/2021   10:49:27   ( -69.32,-161.32) 09/11/2021   10:48:19  ( -69.34,-163.23)   75.09                68
 09/14/2021   01:24:33   ( -70.21, -21.34) 09/14/2021   01:25:35  ( -70.23, -21.40)    3.15                62
 09/14/2021   02:15:17   (  70.12, 146.11) 09/14/2021   02:15:02  (  70.11, 146.08)    1.57                15
 09/14/2021   03:05:50   ( -69.59, -45.76) 09/14/2021   03:04:39  ( -69.63, -46.96)   46.95                71