Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 8 26.  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)
 08/27/2020   12:37:46   ( -70.61, 167.60) 08/27/2020   12:38:18  ( -70.60, 167.63)    1.39                32
 08/27/2020   13:28:30   (  70.52, -24.93) 08/27/2020   13:27:45  (  70.50, -24.88)    2.55                45
 08/30/2020   04:54:08   ( -70.62, -76.50) 08/30/2020   04:54:47  ( -70.63, -76.46)    1.48                39
 08/30/2020   05:44:52   (  70.52,  90.97) 08/30/2020   05:44:14  (  70.52,  91.02)    2.05                38
 09/01/2020   21:10:31   ( -70.63,  39.40) 09/01/2020   21:11:17  ( -70.64,  39.45)    2.10                46
 09/01/2020   22:01:15   (  70.53,-153.13) 09/01/2020   22:00:44  (  70.53,-153.08)    1.99                31
 09/04/2020   13:26:54   ( -70.64, 155.30) 09/04/2020   13:27:47  ( -70.66, 155.35)    2.35                53
 09/04/2020   14:17:38   (  70.54, -37.23) 09/04/2020   14:17:14  (  70.54, -37.18)    1.98                24
 09/04/2020   15:08:05   ( -69.70, 131.40) 09/04/2020   15:06:57  ( -69.73, 129.29)   81.21                68
 09/07/2020   05:43:17   ( -70.66, -88.81) 09/07/2020   05:44:17  ( -70.67, -88.76)    2.14                60
 09/07/2020   06:34:01   (  70.56,  78.66) 09/07/2020   06:33:44  (  70.55,  78.71)    2.06                17