Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 10 11.  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)
 10/14/2025   11:33:34   (  76.49,  15.41) 10/14/2025   11:34:45  (  76.43,  15.94)   15.45                71
 10/14/2025   12:24:15   ( -76.34,-176.69) 10/14/2025   12:24:14  ( -76.35,-176.67)    1.64                 1
 10/14/2025   13:14:55   (  76.12,  -8.55) 10/14/2025   13:13:44  (  76.14,  -9.71)   31.07                71
 10/17/2025   03:50:09   (  76.42, 131.62) 10/17/2025   03:51:14  (  76.41, 131.76)    3.83                65
 10/17/2025   04:40:52   ( -76.35, -60.80) 10/17/2025   04:40:43  ( -76.34, -60.84)    1.52                 9
 10/17/2025   05:31:24   (  75.77, 108.59) 10/17/2025   05:30:20  (  75.78, 105.06)   96.52                64
 10/19/2025   20:06:45   (  76.39,-112.37) 10/19/2025   20:07:42  (  76.42,-112.33)    2.77                57
 10/19/2025   20:57:29   ( -76.37,  55.05) 10/19/2025   20:57:11  ( -76.35,  55.08)    2.18                18
 10/22/2025   12:23:22   (  76.42,   3.44) 10/22/2025   12:24:10  (  76.40,   3.51)    3.04                48
 10/22/2025   13:14:05   ( -76.35, 171.05) 10/22/2025   13:13:39  ( -76.33, 170.92)    3.77                26
 10/25/2025   04:39:57   (  76.42, 119.40) 10/25/2025   04:40:36  (  76.41, 119.42)    1.06                39
 10/25/2025   05:30:41   ( -76.38, -73.16) 10/25/2025   05:30:04  ( -76.39, -73.00)    4.22                37