Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2023 5 19.  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)
 05/21/2023   15:22:19   (  73.38, -50.61) 05/21/2023   15:23:29  (  73.27, -49.39)   40.47                70
 05/21/2023   16:12:56   ( -72.97, 117.61) 05/21/2023   16:13:03  ( -72.95, 117.59)    2.96                 7
 05/21/2023   17:03:41   (  72.91, -74.94) 05/21/2023   17:02:29  (  72.91, -74.84)    3.21                72
 05/24/2023   06:49:23   ( -73.33,-102.24) 05/24/2023   06:50:34  ( -73.22,-101.27)   33.35                71
 05/24/2023   07:40:02   (  72.97,  65.87) 05/24/2023   07:40:04  (  72.97,  65.87)    0.53                 2
 05/24/2023   08:30:46   ( -72.91,-126.68) 05/24/2023   08:29:33  ( -72.91,-126.61)    2.41                73
 05/26/2023   22:16:27   (  73.19,-153.66) 05/26/2023   22:17:38  (  73.11,-153.24)   16.56                71
 05/26/2023   23:07:08   ( -72.98,  14.12) 05/26/2023   23:07:08  ( -73.00,  14.17)    2.67                 0
 05/26/2023   23:57:49   (  72.72,-178.02) 05/26/2023   23:56:37  (  72.80,-178.58)   20.28                72
 05/29/2023   13:43:31   ( -73.10, 154.81) 05/29/2023   13:44:43  ( -73.07, 154.92)    4.87                72
 05/29/2023   14:34:15   (  73.00, -37.66) 05/29/2023   14:34:10  (  72.97, -37.63)    3.13                 5
 05/29/2023   15:24:54   ( -72.68, 130.33) 05/29/2023   15:23:42  ( -72.76, 129.58)   26.30                72
 06/01/2023   05:10:37   (  73.08, 103.11) 06/01/2023   05:11:44  (  73.07, 103.18)    2.28                67
 06/01/2023   06:01:20   ( -72.96, -89.31) 06/01/2023   06:01:14  ( -72.97, -89.40)    3.24                 6