Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 9 23.  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)
 09/26/2020   00:28:39   (  70.64, 169.93) 09/26/2020   00:29:10  (  70.62, 169.96)    2.96                31
 09/26/2020   01:19:19   ( -70.49, -22.51) 09/26/2020   01:18:40  ( -70.51, -22.57)    2.86                39
 09/28/2020   16:45:02   (  70.66, -74.19) 09/28/2020   16:45:39  (  70.65, -74.11)    3.00                37
 09/28/2020   17:35:43   ( -70.56,  93.30) 09/28/2020   17:35:09  ( -70.55,  93.37)    3.02                34
 10/01/2020   09:01:24   (  70.63,  41.78) 10/01/2020   09:02:09  (  70.63,  41.74)    1.56                45
 10/01/2020   09:52:05   ( -70.53,-150.73) 10/01/2020   09:51:39  ( -70.53,-150.78)    1.97                26
 10/04/2020   01:17:46   (  70.65, 157.66) 10/04/2020   01:18:37  (  70.66, 157.67)    1.32                51
 10/04/2020   02:08:27   ( -70.54, -34.84) 10/04/2020   02:08:07  ( -70.56, -34.85)    2.15                20
 10/04/2020   02:58:55   (  69.59, 133.92) 10/04/2020   02:57:49  (  69.62, 131.45)   95.79                66
 10/06/2020   17:34:09   (  70.67, -86.46) 10/06/2020   17:35:06  (  70.69, -86.41)    2.46                57
 10/06/2020   18:24:50   ( -70.56,  81.05) 10/06/2020   18:24:36  ( -70.59,  81.07)    3.43                14
 10/06/2020   19:15:22   (  69.83,-110.51) 10/06/2020   19:14:14  (  69.87,-112.32)   69.86                68