Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 8 20.  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)
 08/23/2023   00:31:30   ( -76.09, -14.03) 08/23/2023   00:30:22  ( -76.08, -16.68)   70.82                68
 08/23/2023   01:22:24   (  76.41, 152.08) 08/23/2023   01:21:10  (  76.38, 151.73)   10.26                74
 08/23/2023   02:13:10   ( -76.47, -40.82) 08/23/2023   02:12:12  ( -76.47, -40.69)    3.55                58
 08/23/2023   03:03:55   (  76.44, 126.60) 08/23/2023   03:03:06  (  76.46, 126.56)    2.38                49
 08/23/2023   03:54:40   ( -76.45, -66.13) 08/23/2023   03:54:10  ( -76.46, -66.19)    1.92                30
 08/23/2023   04:45:27   (  76.47, 101.12) 08/23/2023   04:45:05  (  76.45, 101.05)    2.50                22
 08/23/2023   05:36:12   ( -76.48, -91.61) 08/23/2023   05:36:08  ( -76.50, -91.53)    3.14                 4
 08/23/2023   06:26:59   (  76.49,  75.64) 08/23/2023   06:27:03  (  76.49,  75.71)    1.64                 4
 08/23/2023   07:17:44   ( -76.51,-117.09) 08/23/2023   07:18:07  ( -76.50,-117.04)    1.59                23
 08/23/2023   08:08:31   (  76.52,  50.16) 08/23/2023   08:09:02  (  76.49,  50.19)    3.65                31
 08/23/2023   08:59:15   ( -76.49,-142.40) 08/23/2023   09:00:06  ( -76.49,-142.55)    3.95                51
 08/23/2023   09:50:02   (  76.50,  24.85) 08/23/2023   09:51:00  (  76.53,  24.86)    2.74                58
 08/23/2023   10:40:49   ( -76.60,-168.22) 08/23/2023   10:42:03  ( -76.57,-167.71)   13.43                74
 08/23/2023   11:31:44   (  76.97,  -2.39) 08/23/2023   11:32:49  (  76.95,   1.14)   88.65                65