Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 8 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)
 08/24/2020   19:30:59   (  71.58,-117.29) 08/24/2020   19:32:04  (  71.47,-114.51)   98.85                65
 08/24/2020   20:21:22   ( -70.58,  51.74) 08/24/2020   20:21:47  ( -70.60,  51.76)    2.59                25
 08/24/2020   21:12:06   (  70.49,-140.80) 08/24/2020   21:11:14  (  70.50,-140.76)    1.85                52
 08/27/2020   12:37:45   ( -70.58, 167.65) 08/27/2020   12:38:18  ( -70.58, 167.59)    2.19                33
 08/27/2020   13:28:29   (  70.49, -24.89) 08/27/2020   13:27:45  (  70.47, -24.92)    2.66                44
 08/30/2020   04:54:08   ( -70.59, -76.44) 08/30/2020   04:54:48  ( -70.60, -76.49)    2.80                40
 08/30/2020   05:44:52   (  70.49,  91.02) 08/30/2020   05:44:15  (  70.49,  90.99)    1.39                37
 09/01/2020   21:10:32   ( -70.64,  39.39) 09/01/2020   21:11:18  ( -70.63,  39.42)    1.94                46
 09/01/2020   22:01:15   (  70.49,-153.06) 09/01/2020   22:00:45  (  70.51,-153.10)    2.74                30
 09/04/2020   13:26:54   ( -70.64, 155.30) 09/04/2020   13:27:47  ( -70.65, 155.33)    1.53                53
 09/04/2020   14:17:38   (  70.55, -37.24) 09/04/2020   14:17:14  (  70.53, -37.20)    2.21                24