Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 10 17.  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   (  78.12,  -2.42) 10/21/2021   10:41:54  (  78.14,  -2.40)    2.20                75
 10/21/2021   11:33:53   ( -78.13, 164.84) 10/21/2021   11:32:51  ( -78.15, 164.90)    2.11                62
 10/21/2021   12:24:37   (  78.13, -27.81) 10/21/2021   12:23:53  (  78.15, -27.85)    2.65                44
 10/21/2021   13:15:21   ( -78.14, 139.45) 10/21/2021   13:14:50  ( -78.16, 139.45)    2.17                31
 10/21/2021   14:06:07   (  78.17, -53.42) 10/21/2021   14:05:53  (  78.16, -53.30)    3.15                14
 10/21/2021   14:56:50   ( -78.14, 114.06) 10/21/2021   14:56:50  ( -78.16, 114.00)    2.99                 0
 10/21/2021   15:47:36   (  78.18, -78.81) 10/21/2021   15:47:53  (  78.17, -78.75)    1.76                17
 10/21/2021   16:38:20   ( -78.18,  88.46) 10/21/2021   16:38:50  ( -78.17,  88.56)    2.56                30
 10/21/2021   17:29:05   (  78.18,-104.20) 10/21/2021   17:29:53  (  78.17,-104.20)    0.63                48
 10/21/2021   18:19:49   ( -78.19,  63.07) 10/21/2021   18:20:50  ( -78.18,  63.11)    1.20                61
 10/21/2021   19:10:39   (  78.38,-130.70) 10/21/2021   19:11:48  (  78.37,-128.50)   49.34                69