Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 10 19.  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   (  78.13,  -2.45) 10/21/2021   10:41:54  (  78.14,  -2.43)    1.11                75
 10/21/2021   11:33:53   ( -78.14, 164.81) 10/21/2021   11:32:51  ( -78.14, 164.86)    1.07                62
 10/21/2021   12:24:38   (  78.13, -27.84) 10/21/2021   12:23:54  (  78.15, -27.88)    1.81                44
 10/21/2021   13:15:22   ( -78.14, 139.42) 10/21/2021   13:14:51  ( -78.15, 139.41)    0.77                31
 10/21/2021   14:06:07   (  78.14, -53.23) 10/21/2021   14:05:54  (  78.15, -53.33)    3.07                13
 10/21/2021   14:56:51   ( -78.15, 114.03) 10/21/2021   14:56:51  ( -78.16, 113.96)    2.01                 0
 10/21/2021   15:47:37   (  78.18, -78.84) 10/21/2021   15:47:54  (  78.16, -78.79)    2.41                17
 10/21/2021   16:38:21   ( -78.19,  88.42) 10/21/2021   16:38:51  ( -78.17,  88.51)    3.35                30
 10/21/2021   17:29:06   (  78.18,-104.23) 10/21/2021   17:29:54  (  78.17,-104.24)    1.72                48
 10/21/2021   18:19:49   ( -78.19,  63.03) 10/21/2021   18:20:50  ( -78.17,  63.06)    2.31                61
 10/21/2021   19:10:39   (  78.38,-130.73) 10/21/2021   19:11:48  (  78.36,-128.54)   49.09                69