Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 11 28.  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)
 11/29/2020   08:42:53   (  70.71,  46.50) 11/29/2020   08:43:36  (  70.74,  46.51)    2.54                43
 11/29/2020   09:33:35   ( -70.62,-146.03) 11/29/2020   09:33:06  ( -70.62,-146.03)    0.56                29
 12/02/2020   00:59:15   (  70.74, 162.38) 12/02/2020   01:00:05  (  70.76, 162.42)    2.70                50
 12/02/2020   01:49:57   ( -70.64, -30.14) 12/02/2020   01:49:35  ( -70.65, -30.11)    1.42                22
 12/02/2020   02:40:23   (  69.63, 138.73) 12/02/2020   02:39:17  (  69.72, 136.20)   98.39                66
 12/04/2020   17:15:37   (  70.76, -81.74) 12/04/2020   17:16:34  (  70.77, -81.68)    2.48                57
 12/04/2020   18:06:19   ( -70.66,  85.74) 12/04/2020   18:06:04  ( -70.67,  85.79)    1.97                15
 12/04/2020   18:56:50   (  69.92,-105.78) 12/04/2020   18:55:42  (  69.95,-107.60)   69.43                68
 12/07/2020   09:31:59   (  70.79,  34.13) 12/07/2020   09:33:03  (  70.78,  34.21)    3.32                64
 12/07/2020   10:22:41   ( -70.69,-158.38) 12/07/2020   10:22:33  ( -70.68,-158.31)    3.31                 8
 12/07/2020   11:13:17   (  70.22,   9.69) 12/07/2020   11:12:06  (  70.24,   8.69)   38.00                71
 12/10/2020   01:48:20   (  70.83, 150.00) 12/10/2020   01:49:31  (  70.78, 150.10)    6.10                71
 12/10/2020   02:39:01   ( -70.67, -42.43) 12/10/2020   02:39:01  ( -70.68, -42.42)    0.65                 0
 12/10/2020   03:29:42   (  70.46, 125.23) 12/10/2020   03:28:29  (  70.51, 124.97)   11.44                73