Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2023 5 15.  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)
 05/21/2023   02:41:59   ( -76.52, -49.55) 05/21/2023   02:40:46  ( -76.54, -50.35)   20.85                73
 05/21/2023   03:32:47   (  76.62, 117.39) 05/21/2023   03:31:39  (  76.64, 117.33)    2.74                68
 05/21/2023   04:23:33   ( -76.64, -75.37) 05/21/2023   04:22:43  ( -76.63, -75.47)    2.71                50
 05/21/2023   05:14:19   (  76.64,  91.91) 05/21/2023   05:13:38  (  76.64,  91.85)    1.37                41
 05/21/2023   06:05:05   ( -76.66,-100.86) 05/21/2023   06:04:41  ( -76.68,-100.77)    2.72                24
 05/21/2023   06:55:51   (  76.67,  66.42) 05/21/2023   06:55:37  (  76.65,  66.38)    2.72                14
 05/21/2023   07:46:37   ( -76.69,-126.34) 05/21/2023   07:46:40  ( -76.68,-126.24)    2.64                 3
 05/21/2023   08:37:23   (  76.70,  40.94) 05/21/2023   08:37:35  (  76.70,  41.09)    3.92                12
 05/21/2023   09:28:08   ( -76.67,-151.65) 05/21/2023   09:28:39  ( -76.69,-151.71)    2.35                31
 05/21/2023   10:18:54   (  76.68,  15.63) 05/21/2023   10:19:34  (  76.70,  15.62)    2.46                40
 05/21/2023   11:09:40   ( -76.70,-177.13) 05/21/2023   11:10:38  ( -76.69,-177.19)    1.51                58
 05/21/2023   12:00:26   (  76.71,  -9.86) 05/21/2023   12:01:33  (  76.71,  -9.85)    0.23                67
 05/21/2023   12:51:22   ( -77.15, 155.58) 05/21/2023   12:52:27  ( -77.12, 159.18)   89.14                65