Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 2 20.  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)
 02/20/2023   21:21:45   (  73.03,-140.88) 02/20/2023   21:22:55  (  72.92,-139.82)   36.27                70
 02/20/2023   22:12:22   ( -72.63,  27.30) 02/20/2023   22:12:28  ( -72.64,  27.26)    1.77                 6
 02/20/2023   23:03:07   (  72.55,-165.23) 02/20/2023   23:01:55  (  72.55,-165.26)    1.09                72
 02/23/2023   12:48:52   ( -72.72, 168.02) 02/23/2023   12:49:59  ( -72.70, 167.98)    3.25                67
 02/23/2023   13:39:36   (  72.64, -24.51) 02/23/2023   13:39:24  (  72.66, -24.44)    2.95                12
 02/23/2023   14:30:11   ( -72.14, 143.83) 02/23/2023   14:29:01  ( -72.16, 142.28)   52.95                70
 02/26/2023   04:16:05   (  72.70, 116.28) 02/26/2023   04:16:55  (  72.68, 116.22)    3.19                50
 02/26/2023   05:06:48   ( -72.60, -76.19) 02/26/2023   05:06:24  ( -72.61, -76.28)    3.16                24
 02/28/2023   19:43:18   ( -72.73,  64.46) 02/28/2023   19:43:53  ( -72.71,  64.52)    3.04                35
 02/28/2023   20:34:02   (  72.60,-127.96) 02/28/2023   20:33:20  (  72.62,-128.01)    2.62                42
 03/03/2023   11:10:31   (  72.69,  12.77) 03/03/2023   11:10:49  (  72.68,  12.72)    2.12                18
 03/03/2023   12:01:14   ( -72.59,-179.72) 03/03/2023   12:00:18  ( -72.61,-179.77)    2.58                56
 03/06/2023   01:47:04   (  73.00, 153.02) 03/06/2023   01:48:15  (  72.87, 153.71)   26.86                71
 03/06/2023   02:37:43   ( -72.70, -39.02) 03/06/2023   02:37:46  ( -72.69, -38.99)    1.60                 3