Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 5 21.  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   03:32:48   (  76.64, 117.31) 05/21/2023   03:31:39  (  76.65, 117.39)    2.55                69
 05/21/2023   04:23:34   ( -76.66, -75.48) 05/21/2023   04:22:43  ( -76.64, -75.43)    2.94                51
 05/21/2023   05:14:20   (  76.66,  91.83) 05/21/2023   05:13:38  (  76.66,  91.91)    2.37                42
 05/21/2023   06:05:05   ( -76.64,-100.79) 05/21/2023   06:04:42  ( -76.64,-100.91)    2.97                23
 05/21/2023   06:55:51   (  76.64,  66.52) 05/21/2023   06:55:37  (  76.66,  66.44)    2.64                14
 05/21/2023   07:46:37   ( -76.67,-126.27) 05/21/2023   07:46:40  ( -76.69,-126.20)    2.88                 3
 05/21/2023   08:37:23   (  76.67,  41.03) 05/21/2023   08:37:36  (  76.67,  40.97)    1.58                13
 05/21/2023   09:28:09   ( -76.70,-151.76) 05/21/2023   09:28:39  ( -76.70,-151.68)    2.11                30
 05/21/2023   10:18:55   (  76.70,  15.55) 05/21/2023   10:19:35  (  76.67,  15.50)    3.02                40
 05/21/2023   11:09:40   ( -76.68,-177.07) 05/21/2023   11:10:38  ( -76.70,-177.15)    3.13                58
 05/21/2023   12:00:27   (  76.72,  -9.94) 05/21/2023   12:01:33  (  76.72,  -9.79)    3.77                66
 05/21/2023   12:51:22   ( -77.14, 155.65) 05/21/2023   12:52:28  ( -77.08, 159.03)   83.95                66