Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 3 22.  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)
 03/22/2022   12:12:08   (  71.80,  -4.39) 03/22/2022   12:12:54  (  71.81,  -4.35)    1.89                46
 03/22/2022   13:02:50   ( -71.70, 163.11) 03/22/2022   13:02:24  ( -71.69, 163.08)    1.47                26
 03/25/2022   03:39:14   ( -71.78, -56.12) 03/25/2022   03:39:56  ( -71.79, -56.15)    1.30                42
 03/25/2022   04:30:00   (  71.71, 111.32) 03/25/2022   04:29:23  (  71.69, 111.33)    2.06                37
 03/27/2022   19:06:24   (  71.80,-107.92) 03/27/2022   19:06:55  (  71.78,-107.92)    2.66                31
 03/27/2022   19:57:06   ( -71.69,  59.60) 03/27/2022   19:56:24  ( -71.72,  59.61)    2.90                42
 03/30/2022   10:33:30   ( -71.78,-159.64) 03/30/2022   10:33:56  ( -71.80,-159.65)    1.78                26
 03/30/2022   11:24:16   (  71.72,   7.78) 03/30/2022   11:23:23  (  71.69,   7.82)    3.31                53
 04/02/2022   01:10:09   ( -72.64, -20.39) 04/02/2022   01:11:15  ( -72.56, -17.67)   90.73                66
 04/02/2022   02:00:38   (  71.77, 148.62) 04/02/2022   02:00:54  (  71.76, 148.54)    2.83                16
 04/02/2022   02:51:21   ( -71.70, -43.94) 04/02/2022   02:50:23  ( -71.71, -43.91)    1.24                58
 04/04/2022   16:37:10   (  72.28, -71.43) 04/04/2022   16:38:20  (  72.14, -70.19)   45.10                70
 04/04/2022   17:27:45   ( -71.80,  96.81) 04/04/2022   17:27:55  ( -71.77,  96.80)    3.08                10
 04/04/2022   18:18:30   (  71.70, -95.69) 04/04/2022   18:17:21  (  71.71, -95.65)    2.36                69