Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 9 12.  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)
 09/15/2025   02:12:03   (  76.24, 155.92) 09/15/2025   02:12:19  (  76.24, 155.94)    1.04                16
 09/15/2025   03:02:46   ( -76.21, -36.65) 09/15/2025   03:01:47  ( -76.21, -36.51)    3.83                59
 09/17/2025   17:38:10   ( -76.84, 102.18) 09/17/2025   17:39:14  ( -76.73, 105.85)   94.11                64
 09/17/2025   18:28:42   (  76.24, -88.16) 09/17/2025   18:28:50  (  76.24, -88.17)    0.47                 8
 09/17/2025   19:19:25   ( -76.20,  79.29) 09/17/2025   19:18:18  ( -76.22,  79.39)    2.75                67
 09/20/2025   09:54:41   ( -76.48,-140.49) 09/20/2025   09:55:52  ( -76.40,-139.41)   29.54                71
 09/20/2025   10:45:21   (  76.24,  27.75) 09/20/2025   10:45:21  (  76.24,  27.69)    1.77                 0
 09/20/2025   11:36:03   ( -76.15,-164.61) 09/20/2025   11:34:49  ( -76.21,-164.74)    7.60                74
 09/23/2025   02:11:15   ( -76.31, -23.90) 09/23/2025   02:12:24  ( -76.30, -23.88)    1.18                69
 09/23/2025   03:01:59   (  76.24, 143.65) 09/23/2025   03:01:50  (  76.27, 143.69)    3.48                 9
 09/23/2025   03:52:34   ( -75.84, -47.58) 09/23/2025   03:51:26  ( -75.87, -49.95)   64.42                68
 09/25/2025   18:27:54   ( -76.31,  92.00) 09/25/2025   18:28:55  ( -76.29,  91.96)    2.99                61
 09/25/2025   19:18:38   (  76.25,-100.47) 09/25/2025   19:18:21  (  76.26,-100.48)    0.63                17