Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 11 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)
 11/18/2021   00:02:12   (  78.08, 158.27) 11/18/2021   00:00:58  (  78.05, 158.29)    3.56                74
 11/18/2021   00:52:55   ( -78.06, -34.33) 11/18/2021   00:52:00  ( -78.08, -34.28)    2.34                55
 11/18/2021   01:43:40   (  78.08, 132.87) 11/18/2021   01:42:57  (  78.05, 132.83)    3.46                43
 11/18/2021   02:34:24   ( -78.07, -59.72) 11/18/2021   02:34:00  ( -78.09, -59.74)    2.38                24
 11/18/2021   03:25:09   (  78.09, 107.48) 11/18/2021   03:24:56  (  78.10, 107.59)    2.85                13
 11/18/2021   04:15:53   ( -78.07, -85.12) 11/18/2021   04:16:00  ( -78.09, -85.19)    3.16                 7
 11/18/2021   05:06:38   (  78.09,  82.08) 11/18/2021   05:06:56  (  78.10,  82.13)    1.77                18
 11/18/2021   05:57:23   ( -78.11,-110.72) 11/18/2021   05:58:00  ( -78.10,-110.65)    2.30                37
 11/18/2021   06:48:07   (  78.10,  56.69) 11/18/2021   06:48:56  (  78.11,  56.67)    1.59                49
 11/18/2021   07:38:52   ( -78.12,-136.12) 11/18/2021   07:40:00  ( -78.11,-136.10)    1.21                68
 11/18/2021   08:29:43   (  78.37,  29.75) 11/18/2021   08:30:50  (  78.34,  32.58)   63.69                67