Simultaneous Nadir Overpasses (SNOs) between FY3D and TERRA
TLE Epoch: 2022 2 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)
 02/20/2022   09:41:16   (  71.00,  34.45) 02/20/2022   09:42:17  (  70.98,  34.47)    2.76                61
 02/20/2022   10:31:58   ( -70.88,-158.03) 02/20/2022   10:31:46  ( -70.91,-158.00)    3.08                12
 02/20/2022   11:22:32   (  70.19,  10.39) 02/20/2022   11:21:23  (  70.26,   8.68)   65.00                69
 02/23/2022   01:08:23   ( -70.98, -17.27) 02/23/2022   01:09:15  ( -70.99, -17.27)    1.56                52
 02/23/2022   01:59:08   (  70.87, 150.23) 02/23/2022   01:58:42  (  70.89, 150.22)    3.03                26
 02/25/2022   16:35:33   (  70.96, -69.01) 02/25/2022   16:36:11  (  70.96, -69.07)    2.13                38
 02/25/2022   17:26:16   ( -70.90,  98.41) 02/25/2022   17:25:40  ( -70.90,  98.47)    2.03                36
 02/28/2022   08:02:40   ( -70.95,-120.74) 02/28/2022   08:03:09  ( -70.97,-120.82)    3.57                29
 02/28/2022   08:53:26   (  70.88,  46.67) 02/28/2022   08:52:36  (  70.86,  46.65)    2.87                50
 03/02/2022   22:39:18   ( -71.77,  18.72) 03/02/2022   22:40:25  ( -71.67,  20.91)   77.57                67
 03/02/2022   23:29:50   (  70.99,-172.58) 03/02/2022   23:30:03  (  70.96,-172.57)    2.38                13
 03/03/2022   00:20:32   ( -70.87,  -5.07) 03/03/2022   00:19:33  ( -70.85,  -5.11)    2.50                59
 03/05/2022   14:06:18   (  71.25, -32.11) 03/05/2022   14:07:29  (  71.17, -31.64)   18.71                71
 03/05/2022   14:56:57   ( -70.98, 135.68) 03/05/2022   14:57:01  ( -70.95, 135.65)    2.85                 4
 03/05/2022   15:47:41   (  70.81, -56.73) 03/05/2022   15:46:28  (  70.84, -56.88)    6.35                73