Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 6 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)
 06/21/2023   08:17:00   ( -76.09,-131.33) 06/21/2023   08:15:55  ( -76.10,-134.85)   94.12                65
 06/21/2023   09:07:57   (  76.58,  34.17) 06/21/2023   09:06:47  (  76.57,  34.21)    1.50                70
 06/21/2023   09:58:42   ( -76.56,-158.45) 06/21/2023   09:57:43  ( -76.58,-158.48)    2.18                59
 06/21/2023   10:49:29   (  76.60,   8.71) 06/21/2023   10:48:46  (  76.57,   8.73)    3.43                43
 06/21/2023   11:40:14   ( -76.58, 176.09) 06/21/2023   11:39:42  ( -76.58, 176.04)    1.35                32
 06/21/2023   12:31:00   (  76.58, -16.59) 06/21/2023   12:30:44  (  76.62, -16.58)    4.09                16
 06/21/2023   13:21:46   ( -76.61, 150.62) 06/21/2023   13:21:41  ( -76.58, 150.55)    3.09                 5
 06/21/2023   14:12:32   (  76.60, -42.06) 06/21/2023   14:12:43  (  76.62, -42.07)    1.89                11
 06/21/2023   15:03:18   ( -76.63, 125.15) 06/21/2023   15:03:39  ( -76.63, 125.24)    2.23                21
 06/21/2023   15:54:04   (  76.62, -67.52) 06/21/2023   15:54:42  (  76.62, -67.55)    0.80                38
 06/21/2023   16:44:50   ( -76.65,  99.69) 06/21/2023   16:45:38  ( -76.63,  99.75)    2.85                48
 06/21/2023   17:35:36   (  76.65, -92.99) 06/21/2023   17:36:41  (  76.62, -93.03)    2.81                65
 06/21/2023   18:26:22   ( -76.67,  74.22) 06/21/2023   18:27:37  ( -76.63,  74.27)    4.68                75