Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2025 7 21.  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)
 07/23/2025   14:20:09   (  76.09, -26.97) 07/23/2025   14:21:21  (  76.06, -26.88)    3.46                72
 07/23/2025   15:10:52   ( -76.04, 140.53) 07/23/2025   15:10:49  ( -76.04, 140.67)    3.85                 3
 07/23/2025   16:01:30   (  75.70, -51.00) 07/23/2025   16:00:20  (  75.77, -52.49)   41.65                70
 07/26/2025   06:36:48   (  76.06,  89.03) 07/26/2025   06:37:51  (  76.05,  88.94)    3.05                63
 07/26/2025   07:27:31   ( -76.01,-103.48) 07/26/2025   07:27:19  ( -76.02,-103.49)    1.22                12
 07/28/2025   22:53:27   (  76.09,-155.15) 07/28/2025   22:54:19  (  76.06,-155.12)    2.87                52
 07/28/2025   23:44:10   ( -76.04,  12.34) 07/28/2025   23:43:47  ( -76.05,  12.46)    3.22                23
 07/31/2025   15:10:06   (  76.07, -39.19) 07/31/2025   15:10:48  (  76.07, -39.22)    0.97                42
 07/31/2025   16:00:49   ( -76.02, 128.30) 07/31/2025   16:00:17  ( -76.00, 128.21)    3.27                32
 08/03/2025   07:26:45   (  76.06,  76.77) 08/03/2025   07:27:17  (  76.06,  76.64)    3.42                32