Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 6 10.  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)
 06/21/2023   08:17:01   ( -76.13,-131.45) 06/21/2023   08:15:55  ( -76.12,-134.77)   88.70                66
 06/21/2023   09:07:57   (  76.58,  34.19) 06/21/2023   09:06:47  (  76.58,  34.27)    2.27                70
 06/21/2023   09:58:43   ( -76.59,-158.57) 06/21/2023   09:57:44  ( -76.56,-158.57)    3.93                59
 06/21/2023   10:49:29   (  76.60,   8.72) 06/21/2023   10:48:46  (  76.59,   8.79)    2.01                43
 06/21/2023   11:40:14   ( -76.57, 176.13) 06/21/2023   11:39:42  ( -76.60, 176.12)    3.50                32
 06/21/2023   12:31:00   (  76.58, -16.57) 06/21/2023   12:30:45  (  76.59, -16.70)    3.58                15
 06/21/2023   13:21:46   ( -76.59, 150.67) 06/21/2023   13:21:41  ( -76.61, 150.64)    1.45                 5
 06/21/2023   14:12:32   (  76.60, -42.04) 06/21/2023   14:12:44  (  76.59, -42.18)    3.75                12
 06/21/2023   15:03:18   ( -76.62, 125.20) 06/21/2023   15:03:40  ( -76.61, 125.15)    1.61                22
 06/21/2023   15:54:04   (  76.62, -67.51) 06/21/2023   15:54:42  (  76.64, -67.49)    1.90                38
 06/21/2023   16:44:50   ( -76.64,  99.73) 06/21/2023   16:45:38  ( -76.65,  99.84)    3.19                48
 06/21/2023   17:35:36   (  76.64, -92.97) 06/21/2023   17:36:41  (  76.64, -92.97)    0.37                65
 06/21/2023   18:26:23   ( -76.71,  74.09) 06/21/2023   18:27:37  ( -76.65,  74.36)    8.84                74