Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 12 24.  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)
 12/24/2022   21:35:19   ( -72.42,  36.30) 12/24/2022   21:35:41  ( -72.44,  36.21)    3.56                22
 12/24/2022   22:26:05   (  72.36,-156.29) 12/24/2022   22:25:08  (  72.35,-156.31)    2.01                57
 12/27/2022   12:12:00   ( -72.88, 176.22) 12/27/2022   12:13:10  ( -72.79, 177.47)   42.29                70
 12/27/2022   13:02:38   (  72.43, -15.53) 12/27/2022   13:02:42  (  72.43, -15.56)    0.83                 4
 12/27/2022   13:53:21   ( -72.34, 151.96) 12/27/2022   13:52:11  ( -72.37, 151.96)    3.38                70
 12/30/2022   03:39:12   (  72.51, 125.21) 12/30/2022   03:40:17  (  72.49, 125.14)    3.17                65
 12/30/2022   04:29:55   ( -72.41, -67.28) 12/30/2022   04:29:46  ( -72.43, -67.33)    2.75                 9
 12/30/2022   05:20:30   (  71.80, 101.20) 12/30/2022   05:19:22  (  71.85,  99.28)   67.00                68
 01/01/2023   19:06:29   ( -72.48,  73.47) 01/01/2023   19:07:20  ( -72.50,  73.41)    2.93                51
 01/01/2023   19:57:14   (  72.40,-119.05) 01/01/2023   19:56:47  (  72.40,-119.13)    2.76                27
 01/04/2023   10:33:48   (  72.48,  21.67) 01/04/2023   10:34:20  (  72.49,  21.64)    1.43                32
 01/04/2023   11:24:32   ( -72.43,-170.91) 01/04/2023   11:23:49  ( -72.44,-170.83)    3.02                43
 01/07/2023   01:10:35   (  73.28, 160.85) 01/07/2023   01:11:41  (  73.14, 163.49)   86.27                66
 01/07/2023   02:01:05   ( -72.51, -30.19) 01/07/2023   02:01:21  ( -72.50, -30.11)    2.97                16
 01/07/2023   02:51:49   (  72.39, 137.37) 01/07/2023   02:50:48  (  72.39, 137.34)    1.29                61