Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 11 15.  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)
 11/15/2022   08:17:45   ( -72.35,-124.62) 11/15/2022   08:18:36  ( -72.36,-124.62)    0.45                51
 11/15/2022   09:08:31   (  72.28,  42.83) 11/15/2022   09:08:03  (  72.27,  42.87)    1.55                28
 11/17/2022   23:45:07   (  72.36,-176.46) 11/17/2022   23:45:35  (  72.36,-176.36)    3.37                28
 11/18/2022   00:35:49   ( -72.25,  -8.90) 11/18/2022   00:35:05  ( -72.24,  -8.95)    1.66                44
 11/20/2022   14:21:52   (  72.91, -36.71) 11/20/2022   14:23:00  (  72.81, -34.90)   60.33                68
 11/20/2022   15:12:25   ( -72.34, 131.80) 11/20/2022   15:12:37  ( -72.32, 131.81)    1.96                12
 11/20/2022   16:03:10   (  72.22, -60.65) 11/20/2022   16:02:04  (  72.23, -60.71)    2.47                66
 11/23/2022   05:49:00   ( -72.39, -87.41) 11/23/2022   05:50:09  ( -72.38, -87.46)    1.76                69
 11/23/2022   06:39:46   (  72.32,  80.03) 11/23/2022   06:39:36  (  72.29,  80.01)    2.96                10
 11/23/2022   07:30:21   ( -71.84,-111.72) 11/23/2022   07:29:11  ( -71.90,-113.04)   46.09                70
 11/25/2022   21:16:20   (  72.37,-139.19) 11/25/2022   21:17:06  (  72.39,-139.19)    1.93                46
 11/25/2022   22:07:03   ( -72.30,  28.27) 11/25/2022   22:06:36  ( -72.27,  28.23)    3.19                27
 11/28/2022   12:43:38   ( -72.36, 169.03) 11/28/2022   12:44:07  ( -72.36, 169.01)    0.80                29
 11/28/2022   13:34:23   (  72.25, -23.44) 11/28/2022   13:33:34  (  72.26, -23.53)    3.56                49