Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 6 20.  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   ( -76.11,-131.40) 06/21/2023   08:15:56  ( -76.08,-134.93)   94.54                65
 06/21/2023   09:07:57   (  76.55,  34.28) 06/21/2023   09:06:48  (  76.55,  34.13)    3.86                69
 06/21/2023   09:58:42   ( -76.58,-158.52) 06/21/2023   09:57:43  ( -76.56,-158.57)    2.74                59
 06/21/2023   10:49:28   (  76.57,   8.81) 06/21/2023   10:48:45  (  76.60,   8.82)    2.25                43
 06/21/2023   11:40:14   ( -76.60, 176.01) 06/21/2023   11:39:41  ( -76.60, 176.12)    2.83                33
 06/21/2023   12:31:00   (  76.60, -16.65) 06/21/2023   12:30:44  (  76.60, -16.66)    0.22                16
 06/21/2023   13:21:46   ( -76.63, 150.55) 06/21/2023   13:21:40  ( -76.61, 150.64)    3.24                 6
 06/21/2023   14:12:32   (  76.62, -42.12) 06/21/2023   14:12:43  (  76.60, -42.15)    2.32                11
 06/21/2023   15:03:17   ( -76.60, 125.25) 06/21/2023   15:03:39  ( -76.61, 125.15)    2.61                22
 06/21/2023   15:54:04   (  76.64, -67.59) 06/21/2023   15:54:41  (  76.64, -67.46)    3.45                37
 06/21/2023   16:44:49   ( -76.63,  99.78) 06/21/2023   16:45:37  ( -76.65,  99.84)    3.22                48
 06/21/2023   17:35:35   (  76.62, -92.88) 06/21/2023   17:36:40  (  76.65, -92.94)    3.32                65
 06/21/2023   18:26:22   ( -76.69,  74.14) 06/21/2023   18:27:36  ( -76.65,  74.35)    6.91                74