Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2020 3 8.  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)
 03/08/2020   22:55:10   (  70.53,-167.05) 03/08/2020   22:56:07  (  70.53,-167.07)    0.56                57
 03/08/2020   23:45:52   ( -70.44,   0.41) 03/08/2020   23:45:37  ( -70.42,   0.40)    2.65                15
 03/09/2020   00:36:23   (  69.68, 168.88) 03/09/2020   00:35:15  (  69.71, 167.04)   71.23                68
 03/11/2020   15:11:34   (  70.56, -51.19) 03/11/2020   15:12:34  (  70.53, -51.19)    3.63                60
 03/11/2020   16:02:16   ( -70.46, 116.28) 03/11/2020   16:02:03  ( -70.47, 116.36)    2.96                13
 03/11/2020   16:52:49   (  69.82, -75.41) 03/11/2020   16:51:39  (  69.87, -76.86)   55.71                70
 03/14/2020   07:27:58   (  70.54,  64.74) 03/14/2020   07:29:02  (  70.52,  64.68)    3.19                64
 03/14/2020   08:18:40   ( -70.44,-127.78) 03/14/2020   08:18:31  ( -70.47,-127.77)    3.53                 9
 03/14/2020   09:09:15   (  69.90,  40.37) 03/14/2020   09:08:05  (  69.97,  39.17)   46.52                70
 03/16/2020   23:44:23   (  70.57,-179.40) 03/16/2020   23:45:29  (  70.57,-179.38)    0.98                66
 03/17/2020   00:35:05   ( -70.46, -11.92) 03/17/2020   00:34:59  ( -70.46, -11.90)    0.62                 6
 03/17/2020   01:25:42   (  70.04, 156.06) 03/17/2020   01:24:31  (  70.07, 155.19)   33.43                71
 03/19/2020   16:00:47   (  70.55, -63.47) 03/19/2020   16:01:57  (  70.55, -63.52)    1.94                70
 03/19/2020   16:51:29   ( -70.44, 104.03) 03/19/2020   16:51:27  ( -70.45, 103.97)    2.60                 2
 03/19/2020   17:42:08   (  70.18, -88.25) 03/19/2020   17:40:55  (  70.23, -88.72)   18.53                73