Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 10 11.  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   10:43:08   (  78.12,  -2.37) 10/21/2021   10:41:53  (  78.14,  -2.41)    2.73                75
 10/21/2021   11:33:52   ( -78.12, 164.91) 10/21/2021   11:32:50  ( -78.15, 164.90)    3.00                62
 10/21/2021   12:24:38   (  78.16, -27.98) 10/21/2021   12:23:53  (  78.15, -27.87)    3.01                45
 10/21/2021   13:15:22   ( -78.16, 139.31) 10/21/2021   13:14:50  ( -78.16, 139.45)    3.45                32
 10/21/2021   14:06:07   (  78.16, -53.37) 10/21/2021   14:05:53  (  78.15, -53.32)    1.62                14
 10/21/2021   14:56:51   ( -78.17, 113.92) 10/21/2021   14:56:50  ( -78.16, 114.01)    2.04                 1
 10/21/2021   15:47:36   (  78.17, -78.76) 10/21/2021   15:47:53  (  78.16, -78.77)    0.58                17
 10/21/2021   16:38:20   ( -78.17,  88.53) 10/21/2021   16:38:50  ( -78.17,  88.56)    0.68                30
 10/21/2021   17:29:05   (  78.17,-104.16) 10/21/2021   17:29:53  (  78.17,-104.22)    1.49                48
 10/21/2021   18:19:49   ( -78.18,  63.14) 10/21/2021   18:20:50  ( -78.18,  63.11)    0.86                61
 10/21/2021   19:10:39   (  78.37,-130.65) 10/21/2021   19:11:49  (  78.33,-128.76)   42.91                70