Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 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)
 07/24/2023   01:23:05   ( -73.16, -19.42) 07/24/2023   01:23:28  ( -73.18, -19.46)    2.73                23
 07/24/2023   02:13:51   (  73.10, 148.02) 07/24/2023   02:12:55  (  73.09, 148.02)    0.29                56
 07/26/2023   16:50:15   (  73.17, -71.20) 07/26/2023   16:50:32  (  73.17, -71.24)    1.65                17
 07/26/2023   17:40:58   ( -73.11,  96.26) 07/26/2023   17:40:01  ( -73.10,  96.26)    0.41                57
 07/29/2023   07:26:52   (  73.89,  68.05) 07/29/2023   07:27:58  (  73.79,  70.68)   82.21                66
 07/29/2023   08:17:22   ( -73.19,-122.97) 07/29/2023   08:17:37  ( -73.21,-122.92)    3.22                15
 07/29/2023   09:08:08   (  73.13,  44.46) 07/29/2023   09:07:04  (  73.12,  44.54)    2.59                64
 07/31/2023   22:53:57   ( -73.81,  16.50) 07/31/2023   22:55:05  ( -73.72,  18.74)   70.47                68
 07/31/2023   23:44:32   (  73.22,-174.79) 07/31/2023   23:44:40  (  73.20,-174.69)    3.39                 8
 08/01/2023   00:35:14   ( -73.10,  -7.21) 08/01/2023   00:34:10  ( -73.09,  -7.28)    2.11                64
 08/03/2023   14:21:01   (  73.61, -34.75) 08/03/2023   14:22:11  (  73.48, -33.52)   41.45                70
 08/03/2023   15:11:37   ( -73.19, 133.52) 08/03/2023   15:11:44  ( -73.22, 133.57)    2.90                 7