Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 12 19.  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,  95.81) 12/26/2023   17:21:35  ( -75.85,  93.20)   71.04                68
 12/26/2023   18:13:37   (  76.21, -98.07) 12/26/2023   18:12:22  (  76.20, -98.25)    4.65                75
 12/26/2023   19:04:22   ( -76.22,  69.18) 12/26/2023   19:03:25  ( -76.22,  69.08)    2.60                57
 12/26/2023   19:55:09   (  76.25,-123.59) 12/26/2023   19:54:20  (  76.22,-123.65)    2.85                49
 12/26/2023   20:45:54   ( -76.26,  43.66) 12/26/2023   20:45:23  ( -76.25,  43.68)    1.48                31
 12/26/2023   21:36:40   (  76.24,-148.95) 12/26/2023   21:36:18  (  76.25,-149.06)    2.87                22
 12/26/2023   22:27:25   ( -76.26,  18.30) 12/26/2023   22:27:21  ( -76.27,  18.28)    2.04                 4
 12/26/2023   23:18:12   (  76.28,-174.47) 12/26/2023   23:18:16  (  76.27,-174.46)    1.00                 4
 12/27/2023   00:08:57   ( -76.29,  -7.22) 12/27/2023   00:09:19  ( -76.30,  -7.12)    2.49                22
 12/27/2023   00:59:43   (  76.27, 160.17) 12/27/2023   01:00:14  (  76.29, 160.14)    2.46                31
 12/27/2023   01:50:28   ( -76.29, -32.57) 12/27/2023   01:51:18  ( -76.28, -32.69)    3.37                50
 12/27/2023   02:41:15   (  76.31, 134.65) 12/27/2023   02:42:12  (  76.32, 134.73)    2.34                57
 12/27/2023   03:32:01   ( -76.37, -58.26) 12/27/2023   03:33:15  ( -76.34, -57.92)    9.32                74
 12/27/2023   04:22:56   (  76.75, 107.58) 12/27/2023   04:24:02  (  76.69, 110.72)   80.54                66