Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 12 22.  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)
 12/26/2023   17:22:43   ( -75.87,  95.79) 12/26/2023   17:21:35  ( -75.84,  93.17)   71.14                68
 12/26/2023   18:13:36   (  76.17, -97.93) 12/26/2023   18:12:22  (  76.19, -98.27)    9.62                74
 12/26/2023   19:04:22   ( -76.23,  69.15) 12/26/2023   19:03:25  ( -76.22,  69.05)    2.94                57
 12/26/2023   19:55:09   (  76.25,-123.61) 12/26/2023   19:54:19  (  76.26,-123.51)    3.12                50
 12/26/2023   20:45:54   ( -76.27,  43.63) 12/26/2023   20:45:23  ( -76.24,  43.65)    3.07                31
 12/26/2023   21:36:40   (  76.24,-148.97) 12/26/2023   21:36:18  (  76.24,-149.08)    2.88                22
 12/26/2023   22:27:25   ( -76.26,  18.28) 12/26/2023   22:27:21  ( -76.26,  18.25)    0.75                 4
 12/26/2023   23:18:12   (  76.28,-174.49) 12/26/2023   23:18:16  (  76.26,-174.48)    2.12                 4
 12/27/2023   00:08:57   ( -76.30,  -7.24) 12/27/2023   00:09:19  ( -76.29,  -7.15)    2.82                22
 12/27/2023   00:59:43   (  76.28, 160.15) 12/27/2023   01:00:14  (  76.29, 160.11)    1.48                31
 12/27/2023   01:50:28   ( -76.30, -32.60) 12/27/2023   01:51:17  ( -76.31, -32.55)    2.21                49
 12/27/2023   02:41:15   (  76.32, 134.63) 12/27/2023   02:42:12  (  76.31, 134.71)    2.25                57
 12/27/2023   03:32:01   ( -76.38, -58.29) 12/27/2023   03:33:15  ( -76.34, -57.96)    9.98                74
 12/27/2023   04:22:56   (  76.75, 107.56) 12/27/2023   04:24:02  (  76.68, 110.70)   80.52                66