Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 12 23.  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   ( -75.86,  95.85) 12/26/2023   17:21:35  ( -75.86,  93.23)   71.01                68
 12/26/2023   18:13:37   (  76.19, -98.03) 12/26/2023   18:12:23  (  76.17, -98.37)    9.46                74
 12/26/2023   19:04:23   ( -76.26,  69.05) 12/26/2023   19:03:25  ( -76.23,  69.12)    3.03                58
 12/26/2023   19:55:09   (  76.23,-123.55) 12/26/2023   19:54:20  (  76.24,-123.61)    1.65                49
 12/26/2023   20:45:54   ( -76.25,  43.70) 12/26/2023   20:45:23  ( -76.26,  43.72)    0.95                31
 12/26/2023   21:36:41   (  76.27,-149.07) 12/26/2023   21:36:18  (  76.26,-149.01)    2.02                23
 12/26/2023   22:27:26   ( -76.29,  18.18) 12/26/2023   22:27:21  ( -76.28,  18.31)    3.77                 5
 12/26/2023   23:18:12   (  76.27,-174.43) 12/26/2023   23:18:16  (  76.28,-174.41)    1.91                 4
 12/27/2023   00:08:57   ( -76.28,  -7.18) 12/27/2023   00:09:20  ( -76.26,  -7.25)    3.17                23
 12/27/2023   00:59:44   (  76.30, 160.05) 12/27/2023   01:00:14  (  76.31, 160.18)    3.41                30
 12/27/2023   01:50:28   ( -76.28, -32.54) 12/27/2023   01:51:18  ( -76.29, -32.66)    3.23                50
 12/27/2023   02:41:14   (  76.30, 134.70) 12/27/2023   02:42:12  (  76.28, 134.61)    2.77                58
 12/27/2023   03:32:00   ( -76.36, -58.23) 12/27/2023   03:33:14  ( -76.35, -57.89)    8.83                74
 12/27/2023   04:22:55   (  76.74, 107.63) 12/27/2023   04:24:01  (  76.70, 110.77)   80.25                66