Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 6 12.  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)   94.22                65
 06/21/2023   09:07:57   (  76.58,  34.16) 06/21/2023   09:06:47  (  76.56,  34.19)    2.48                70
 06/21/2023   09:58:42   ( -76.56,-158.44) 06/21/2023   09:57:43  ( -76.58,-158.48)    2.29                59
 06/21/2023   10:49:28   (  76.56,   8.86) 06/21/2023   10:48:46  (  76.57,   8.71)    3.99                42
 06/21/2023   11:40:14   ( -76.58, 176.09) 06/21/2023   11:39:42  ( -76.58, 176.03)    1.43                32
 06/21/2023   12:31:00   (  76.59, -16.61) 06/21/2023   12:30:44  (  76.61, -16.60)    2.92                16
 06/21/2023   13:21:46   ( -76.61, 150.62) 06/21/2023   13:21:41  ( -76.58, 150.55)    3.13                 5
 06/21/2023   14:12:32   (  76.61, -42.08) 06/21/2023   14:12:43  (  76.61, -42.09)    0.75                11
 06/21/2023   15:03:18   ( -76.63, 125.16) 06/21/2023   15:03:39  ( -76.63, 125.24)    2.13                21
 06/21/2023   15:54:04   (  76.63, -67.54) 06/21/2023   15:54:42  (  76.62, -67.57)    1.73                38
 06/21/2023   16:44:50   ( -76.65,  99.69) 06/21/2023   16:45:38  ( -76.63,  99.75)    2.80                48
 06/21/2023   17:35:36   (  76.65, -93.01) 06/21/2023   17:36:40  (  76.66, -92.88)    3.51                64
 06/21/2023   18:26:22   ( -76.67,  74.22) 06/21/2023   18:27:37  ( -76.63,  74.27)    4.69                75