Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 12 11.  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)
 12/11/2022   17:09:31   ( -72.42, 102.59) 12/11/2022   17:10:04  ( -72.42, 102.60)    0.40                33
 12/11/2022   18:00:17   (  72.35, -89.96) 12/11/2022   17:59:31  (  72.33, -89.92)    2.66                46
 12/14/2022   07:46:20   ( -73.20,-118.18) 12/14/2022   07:47:26  ( -73.08,-115.52)   86.88                66
 12/14/2022   08:36:51   (  72.39,  50.86) 12/14/2022   08:37:04  (  72.41,  50.83)    3.04                13
 12/14/2022   09:27:34   ( -72.31,-141.68) 12/14/2022   09:26:34  ( -72.29,-141.75)    3.30                60
 12/16/2022   23:13:25   (  72.48,-168.44) 12/16/2022   23:14:36  (  72.47,-168.44)    0.40                71
 12/17/2022   00:04:08   ( -72.40,  -0.96) 12/17/2022   00:04:05  ( -72.41,  -0.93)    1.77                 3
 12/17/2022   00:54:48   (  72.03, 167.07) 12/17/2022   00:53:37  (  72.05, 166.06)   34.38                71
 12/19/2022   14:40:42   ( -72.44, 139.85) 12/19/2022   14:41:38  ( -72.46, 139.77)    3.31                56
 12/19/2022   15:31:28   (  72.39, -52.74) 12/19/2022   15:31:05  (  72.36, -52.77)    3.05                23
 12/22/2022   06:08:02   (  72.44,  88.05) 12/22/2022   06:08:37  (  72.44,  87.99)    1.91                35
 12/22/2022   06:58:46   ( -72.40,-104.56) 12/22/2022   06:58:06  ( -72.38,-104.48)    3.31                40
 12/24/2022   20:44:51   (  73.25,-132.80) 12/24/2022   20:45:57  (  73.14,-130.05)   89.36                66
 12/24/2022   21:35:20   ( -72.45,  36.22) 12/24/2022   21:35:38  ( -72.45,  36.24)    1.16                18
 12/24/2022   22:26:05   (  72.36,-156.28) 12/24/2022   22:25:05  (  72.34,-156.30)    2.26                60