Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 3 10.  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)
 03/11/2022   22:23:40   (  71.96,-157.65) 03/11/2022   22:24:51  (  71.90,-157.17)   18.03                71
 03/11/2022   23:14:19   ( -71.71,  10.15) 03/11/2022   23:14:22  ( -71.73,  10.17)    2.25                 3
 03/12/2022   00:05:03   (  71.53, 177.78) 03/12/2022   00:03:50  (  71.58, 177.57)    9.34                73
 03/14/2022   13:50:43   ( -71.83, 150.85) 03/14/2022   13:51:54  ( -71.82, 150.94)    3.05                71
 03/14/2022   14:41:28   (  71.70, -41.61) 03/14/2022   14:41:21  (  71.72, -41.59)    2.72                 7
 03/14/2022   15:32:06   ( -71.39, 126.26) 03/14/2022   15:30:54  ( -71.45, 125.59)   24.70                72
 03/17/2022   05:17:53   (  71.82,  99.08) 03/17/2022   05:18:54  (  71.81,  99.16)    3.30                61
 03/17/2022   06:08:35   ( -71.72, -93.40) 03/17/2022   06:08:24  ( -71.69, -93.40)    2.92                11
 03/17/2022   06:59:09   (  71.03,  75.14) 03/17/2022   06:58:01  (  71.05,  73.20)   70.13                68
 03/19/2022   20:44:59   ( -71.80,  47.38) 03/19/2022   20:45:57  ( -71.77,  47.33)    3.28                58
 03/19/2022   21:35:45   (  71.73,-145.18) 03/19/2022   21:35:23  (  71.72,-145.11)    2.67                22
 03/19/2022   22:26:13   ( -70.90,  23.60) 03/19/2022   22:25:06  ( -70.91,  21.21)   86.89                67
 03/22/2022   12:12:09   (  71.81,  -4.41) 03/22/2022   12:12:56  (  71.78,  -4.40)    2.86                47
 03/22/2022   13:02:51   ( -71.70, 163.11) 03/22/2022   13:02:26  ( -71.68, 163.06)    2.99                25