Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 4 18.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 04/20/2022   13:19:43   (  71.84, -21.13) 04/20/2022   13:20:51  (  71.85, -21.20)    2.53                68
 04/20/2022   14:10:27   ( -71.80, 146.26) 04/20/2022   14:10:20  ( -71.78, 146.33)    3.28                 7
 04/20/2022   15:01:04   (  71.31, -45.53) 04/20/2022   14:59:53  (  71.36, -46.73)   43.31                71
 04/23/2022   04:46:49   ( -71.85, -72.89) 04/23/2022   04:47:54  ( -71.84, -72.97)    2.90                65
 04/23/2022   05:37:34   (  71.77,  94.57) 04/23/2022   05:37:20  (  71.80,  94.60)    3.25                14
 04/23/2022   06:28:08   ( -71.21, -97.11) 04/23/2022   06:26:58  ( -71.25, -98.67)   56.13                70
 04/25/2022   20:13:56   (  71.87,-124.70) 04/25/2022   20:14:52  (  71.89,-124.63)    2.82                56
 04/25/2022   21:04:39   ( -71.77,  42.81) 04/25/2022   21:04:22  ( -71.78,  42.81)    0.97                17
 04/25/2022   21:55:08   (  70.87,-148.29) 04/25/2022   21:54:03  (  70.92,-150.95)   97.00                65
 04/28/2022   11:41:02   ( -71.87,-176.45) 04/28/2022   11:41:55  ( -71.86,-176.44)    1.66                53
 04/28/2022   12:31:46   (  71.76,  -8.92) 04/28/2022   12:31:22  (  71.75,  -8.97)    1.74                24
 05/01/2022   03:08:09   (  71.87, 131.80) 05/01/2022   03:08:54  (  71.87, 131.84)    1.75                45
 05/01/2022   03:58:52   ( -71.76, -60.67) 05/01/2022   03:58:24  ( -71.76, -60.71)    1.45                28