Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2020 6 18.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 06/28/2020   04:50:54   ( -79.34,-104.55) 06/28/2020   04:49:47  ( -79.34,-104.57)    0.72                67
 06/28/2020   05:41:38   (  79.33,  62.88) 06/28/2020   05:40:42  (  79.36,  62.84)    2.91                56
 06/28/2020   06:32:23   ( -79.34,-129.90) 06/28/2020   06:31:47  ( -79.36,-129.91)    1.64                36
 06/28/2020   07:23:08   (  79.36,  37.26) 06/28/2020   07:22:43  (  79.34,  37.23)    2.30                25
 06/28/2020   08:13:53   ( -79.37,-155.52) 06/28/2020   08:13:48  ( -79.34,-155.52)    3.26                 5
 06/28/2020   09:04:37   (  79.36,  11.90) 06/28/2020   09:04:43  (  79.36,  11.88)    0.45                 6
 06/28/2020   09:55:22   ( -79.37, 179.13) 06/28/2020   09:55:48  ( -79.36, 179.14)    1.15                26
 06/28/2020   10:46:06   (  79.36, -13.45) 06/28/2020   10:46:43  (  79.38, -13.46)    2.03                37
 06/28/2020   11:36:51   ( -79.37, 153.77) 06/28/2020   11:37:48  ( -79.38, 153.80)    1.17                57
 06/28/2020   12:27:36   (  79.39, -39.07) 06/28/2020   12:28:44  (  79.36, -39.08)    2.94                68