Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 5 12.  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)
 05/21/2023   02:41:59   ( -76.51, -49.53) 05/21/2023   02:40:46  ( -76.53, -50.38)   22.31                73
 05/21/2023   03:32:47   (  76.61, 117.41) 05/21/2023   03:31:39  (  76.62, 117.28)    3.51                68
 05/21/2023   04:23:33   ( -76.63, -75.35) 05/21/2023   04:22:42  ( -76.66, -75.33)    3.50                51
 05/21/2023   05:14:19   (  76.64,  91.92) 05/21/2023   05:13:38  (  76.63,  91.81)    3.14                41
 05/21/2023   06:05:05   ( -76.66,-100.83) 05/21/2023   06:04:41  ( -76.67,-100.81)    1.28                24
 05/21/2023   06:55:51   (  76.67,  66.44) 05/21/2023   06:55:36  (  76.68,  66.51)    2.33                15
 05/21/2023   07:46:37   ( -76.68,-126.32) 05/21/2023   07:46:40  ( -76.67,-126.28)    1.62                 3
 05/21/2023   08:37:23   (  76.69,  40.95) 05/21/2023   08:37:35  (  76.68,  41.04)    2.50                12
 05/21/2023   09:28:08   ( -76.66,-151.63) 05/21/2023   09:28:39  ( -76.68,-151.75)    3.44                31
 05/21/2023   10:18:54   (  76.68,  15.64) 05/21/2023   10:19:34  (  76.69,  15.57)    2.37                40
 05/21/2023   11:09:40   ( -76.69,-177.11) 05/21/2023   11:10:38  ( -76.68,-177.23)    3.21                58
 05/21/2023   12:00:26   (  76.70,  -9.84) 05/21/2023   12:01:33  (  76.69,  -9.90)    1.73                67
 05/21/2023   12:51:22   ( -77.15, 155.60) 05/21/2023   12:52:27  ( -77.11, 159.13)   87.53                65