Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 10 15.  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)
 10/21/2021   10:43:09   (  78.15,  -2.57) 10/21/2021   10:41:54  (  78.12,  -2.56)    3.92                75
 10/21/2021   11:33:52   ( -78.12, 164.92) 10/21/2021   11:32:51  ( -78.12, 164.75)    4.01                61
 10/21/2021   12:24:38   (  78.16, -27.96) 10/21/2021   12:23:54  (  78.12, -28.01)    3.64                44
 10/21/2021   13:15:22   ( -78.16, 139.32) 10/21/2021   13:14:51  ( -78.13, 139.30)    3.52                31
 10/21/2021   14:06:07   (  78.16, -53.35) 10/21/2021   14:05:53  (  78.17, -53.23)    2.92                14
 10/21/2021   14:56:51   ( -78.17, 113.93) 10/21/2021   14:56:51  ( -78.14, 113.85)    3.46                 0
 10/21/2021   15:47:36   (  78.16, -78.74) 10/21/2021   15:47:53  (  78.18, -78.69)    2.01                17
 10/21/2021   16:38:20   ( -78.17,  88.54) 10/21/2021   16:38:50  ( -78.18,  88.63)    2.61                30
 10/21/2021   17:29:05   (  78.17,-104.14) 10/21/2021   17:29:53  (  78.18,-104.14)    1.90                48
 10/21/2021   18:19:49   ( -78.17,  63.14) 10/21/2021   18:20:50  ( -78.19,  63.18)    2.21                61
 10/21/2021   19:10:40   (  78.41,-130.86) 10/21/2021   19:11:49  (  78.34,-128.67)   49.60                69