Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 10 20.  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,  -2.39) 10/21/2021   10:41:53  (  78.15,  -2.36)    3.72                75
 10/21/2021   11:33:52   ( -78.13, 164.87) 10/21/2021   11:32:50  ( -78.15, 164.93)    3.03                62
 10/21/2021   12:24:37   (  78.12, -27.78) 10/21/2021   12:23:53  (  78.16, -27.81)    4.12                44
 10/21/2021   13:15:21   ( -78.13, 139.48) 10/21/2021   13:14:50  ( -78.16, 139.48)    3.19                31
 10/21/2021   14:06:07   (  78.17, -53.39) 10/21/2021   14:05:53  (  78.17, -53.26)    2.87                14
 10/21/2021   14:56:51   ( -78.18, 113.87) 10/21/2021   14:56:50  ( -78.17, 114.03)    3.69                 1
 10/21/2021   15:47:36   (  78.17, -78.78) 10/21/2021   15:47:53  (  78.17, -78.71)    1.57                17
 10/21/2021   16:38:20   ( -78.18,  88.48) 10/21/2021   16:38:50  ( -78.18,  88.58)    2.32                30
 10/21/2021   17:29:05   (  78.17,-104.17) 10/21/2021   17:29:53  (  78.18,-104.16)    0.89                48
 10/21/2021   18:19:49   ( -78.18,  63.09) 10/21/2021   18:20:50  ( -78.19,  63.13)    1.02                61
 10/21/2021   19:10:40   (  78.41,-130.89) 10/21/2021   19:11:48  (  78.37,-128.46)   54.53                68