Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 12 15.  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)
 12/16/2022   23:13:25   (  72.47,-168.43) 12/16/2022   23:14:36  (  72.47,-168.46)    1.25                71
 12/17/2022   00:04:08   ( -72.40,  -0.97) 12/17/2022   00:04:05  ( -72.40,  -0.95)    0.60                 3
 12/17/2022   00:54:48   (  72.03, 167.07) 12/17/2022   00:53:37  (  72.04, 166.05)   35.06                71
 12/19/2022   14:40:43   ( -72.49, 139.74) 12/19/2022   14:41:37  ( -72.49, 139.83)    3.09                54
 12/19/2022   15:31:28   (  72.38, -52.73) 12/19/2022   15:31:04  (  72.40, -52.69)    2.56                24
 12/22/2022   06:08:02   (  72.43,  88.06) 12/22/2022   06:08:37  (  72.42,  87.96)    3.54                35
 12/22/2022   06:58:45   ( -72.35,-104.46) 12/22/2022   06:58:06  ( -72.36,-104.52)    2.55                39
 12/24/2022   20:44:51   (  73.25,-132.79) 12/24/2022   20:45:57  (  73.12,-130.10)   87.84                66
 12/24/2022   21:35:20   ( -72.45,  36.23) 12/24/2022   21:35:37  ( -72.47,  36.29)    3.32                17
 12/24/2022   22:26:05   (  72.35,-156.27) 12/24/2022   22:25:04  (  72.37,-156.24)    2.36                61
 12/27/2022   12:11:55   ( -72.61, 176.79) 12/27/2022   12:13:07  ( -72.57, 177.08)   10.79                72
 12/27/2022   13:02:38   (  72.42, -15.51) 12/27/2022   13:02:35  (  72.41, -15.56)    1.94                 3