Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 8 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)
 08/13/2025   23:42:47   ( -76.13,  12.80) 08/13/2025   23:43:54  ( -76.13,  12.71)    2.50                67
 08/14/2025   00:33:32   (  76.08,-179.74) 08/14/2025   00:33:20  (  76.11,-179.70)    3.57                12
 08/14/2025   01:24:04   ( -75.56, -10.61) 08/14/2025   01:22:58  ( -75.60, -13.62)   83.48                66
 08/16/2025   15:59:28   ( -76.14, 128.66) 08/16/2025   16:00:24  ( -76.13, 128.57)    2.88                56
 08/16/2025   16:50:13   (  76.10, -63.88) 08/16/2025   16:49:50  (  76.10, -63.85)    1.09                23
 08/19/2025   08:16:09   ( -76.16,-115.50) 08/19/2025   08:16:53  ( -76.15,-115.47)    0.93                44
 08/19/2025   09:06:54   (  76.11,  51.96) 08/19/2025   09:06:20  (  76.08,  51.95)    3.97                34
 08/22/2025   00:32:49   ( -76.18,   0.33) 08/22/2025   00:33:21  ( -76.16,   0.45)    3.55                32
 08/22/2025   01:23:33   (  76.09, 167.95) 08/22/2025   01:22:48  (  76.09, 167.86)    2.46                45
 08/24/2025   16:49:29   ( -76.16, 116.30) 08/24/2025   16:49:50  ( -76.16, 116.32)    0.35                21