Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 10 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)
 10/19/2022   22:36:26   (  72.74,-160.33) 10/19/2022   22:37:35  (  72.62,-158.87)   50.01                69
 10/19/2022   23:27:01   ( -72.25,   7.98) 10/19/2022   23:27:10  ( -72.24,   8.05)    2.80                 9
 10/20/2022   00:17:45   (  72.12, 175.55) 10/20/2022   00:16:37  (  72.15, 175.53)    3.14                68
 10/22/2022   14:03:29   ( -72.91, 147.59) 10/22/2022   14:04:37  ( -72.80, 149.69)   70.00                68
 10/22/2022   14:54:02   (  72.22, -43.68) 10/22/2022   14:54:13  (  72.23, -43.72)    1.61                11
 10/22/2022   15:44:45   ( -72.14, 123.79) 10/22/2022   15:43:42  ( -72.17, 123.80)    3.00                63
 10/25/2022   05:30:30   (  72.94,  95.80) 10/25/2022   05:31:37  (  72.88,  98.09)   75.13                67
 10/25/2022   06:21:01   ( -72.25, -95.46) 10/25/2022   06:21:17  ( -72.24, -95.49)    2.22                16
 10/25/2022   07:11:46   (  72.17,  72.01) 10/25/2022   07:10:44  (  72.14,  71.99)    3.27                62
 10/27/2022   20:57:33   ( -73.13,  43.67) 10/27/2022   20:58:38  ( -73.08,  46.71)   98.59                65
 10/27/2022   21:48:02   (  72.24,-147.16) 10/27/2022   21:48:19  (  72.24,-147.23)    2.57                17
 10/27/2022   22:38:45   ( -72.16,  20.31) 10/27/2022   22:37:48  ( -72.18,  20.30)    2.66                57
 10/30/2022   13:15:02   ( -72.29, 161.02) 10/30/2022   13:15:23  ( -72.27, 161.05)    2.50                21
 10/30/2022   14:05:47   (  72.20, -31.50) 10/30/2022   14:04:50  (  72.17, -31.48)    3.42                57