Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 6 21.  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   ( -76.11,-131.39) 06/21/2023   08:15:55  ( -76.08,-134.92)   94.47                65
 06/21/2023   09:07:56   (  76.55,  34.30) 06/21/2023   09:06:47  (  76.55,  34.15)    3.88                69
 06/21/2023   09:58:42   ( -76.58,-158.51) 06/21/2023   09:57:43  ( -76.56,-158.55)    2.07                59
 06/21/2023   10:49:28   (  76.57,   8.83) 06/21/2023   10:48:45  (  76.60,   8.84)    3.19                43
 06/21/2023   11:40:14   ( -76.60, 176.03) 06/21/2023   11:39:41  ( -76.61, 176.14)    2.98                33
 06/21/2023   12:31:00   (  76.59, -16.64) 06/21/2023   12:30:44  (  76.60, -16.65)    0.97                16
 06/21/2023   13:21:46   ( -76.62, 150.56) 06/21/2023   13:21:40  ( -76.61, 150.65)    2.82                 6
 06/21/2023   14:12:32   (  76.62, -42.10) 06/21/2023   14:12:43  (  76.60, -42.13)    1.44                11
 06/21/2023   15:03:17   ( -76.60, 125.26) 06/21/2023   15:03:39  ( -76.61, 125.17)    2.77                22
 06/21/2023   15:54:04   (  76.64, -67.57) 06/21/2023   15:54:41  (  76.65, -67.44)    3.68                37
 06/21/2023   16:44:49   ( -76.62,  99.80) 06/21/2023   16:45:38  ( -76.61,  99.68)    3.24                49
 06/21/2023   17:35:36   (  76.66, -93.04) 06/21/2023   17:36:40  (  76.65, -92.92)    3.19                64
 06/21/2023   18:26:22   ( -76.69,  74.16) 06/21/2023   18:27:36  ( -76.66,  74.37)    6.52                74