Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 12 3.  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)
 12/11/2023   00:04:09   ( -76.07,  -5.50) 12/11/2023   00:02:57  ( -76.06,  -6.82)   35.45                72
 12/11/2023   00:55:00   (  76.26, 161.12) 12/11/2023   00:53:51  (  76.27, 161.23)    3.26                69
 12/11/2023   01:45:44   ( -76.25, -31.50) 12/11/2023   01:44:51  ( -76.26, -31.56)    2.28                53
 12/11/2023   02:36:31   (  76.26, 135.76) 12/11/2023   02:35:50  (  76.25, 135.67)    2.55                41
 12/11/2023   03:27:16   ( -76.28, -57.02) 12/11/2023   03:26:49  ( -76.29, -56.96)    1.53                27
 12/11/2023   04:18:03   (  76.30, 110.24) 12/11/2023   04:17:48  (  76.28, 110.27)    1.99                15
 12/11/2023   05:08:47   ( -76.28, -82.37) 12/11/2023   05:08:47  ( -76.31, -82.36)    3.72                 0
 12/11/2023   05:59:34   (  76.29,  84.89) 12/11/2023   05:59:46  (  76.30,  84.87)    1.68                12
 12/11/2023   06:50:19   ( -76.32,-107.89) 12/11/2023   06:50:46  ( -76.29,-107.92)    2.68                27
 12/11/2023   07:41:06   (  76.33,  59.37) 12/11/2023   07:41:44  (  76.33,  59.47)    2.68                38
 12/11/2023   08:31:50   ( -76.31,-133.24) 12/11/2023   08:32:44  ( -76.32,-133.31)    2.11                54
 12/11/2023   09:22:37   (  76.32,  34.02) 12/11/2023   09:23:43  (  76.31,  33.91)    3.21                66
 12/11/2023   10:13:27   ( -76.57,-159.60) 12/11/2023   10:14:38  ( -76.52,-158.03)   41.19                71