Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 10 18.  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)
 10/24/2023   20:07:29   ( -76.03,  53.06) 10/24/2023   20:06:20  ( -76.04,  50.97)   56.12                69
 10/24/2023   20:58:21   (  76.31,-140.61) 10/24/2023   20:57:16  (  76.31,-140.78)    4.35                65
 10/24/2023   21:49:07   ( -76.34,  26.59) 10/24/2023   21:48:12  ( -76.33,  26.59)    0.30                55
 10/24/2023   22:39:53   (  76.34,-166.11) 10/24/2023   22:39:14  (  76.34,-166.15)    0.92                39
 10/24/2023   23:30:39   ( -76.37,   1.09) 10/24/2023   23:30:10  ( -76.37,   1.22)    3.33                29
 10/25/2023   00:21:25   (  76.37, 168.39) 10/25/2023   00:21:12  (  76.37, 168.48)    2.53                13
 10/25/2023   01:12:10   ( -76.36, -24.24) 10/25/2023   01:12:09  ( -76.35, -24.32)    2.18                 1
 10/25/2023   02:02:56   (  76.36, 143.05) 10/25/2023   02:03:11  (  76.36, 142.94)    2.85                15
 10/25/2023   02:53:42   ( -76.39, -49.74) 10/25/2023   02:54:07  ( -76.38, -49.69)    1.45                25
 10/25/2023   03:44:28   (  76.39, 117.55) 10/25/2023   03:45:09  (  76.39, 117.58)    0.70                41
 10/25/2023   04:35:13   ( -76.38, -75.08) 10/25/2023   04:36:05  ( -76.41, -75.07)    4.08                52
 10/25/2023   05:26:00   (  76.43,  92.05) 10/25/2023   05:27:07  (  76.42,  92.21)    4.12                67
 10/25/2023   06:16:49   ( -76.59,-101.26) 10/25/2023   06:18:01  ( -76.53,-100.09)   30.74                72