Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2025 8 10.  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)
 08/21/2025   16:05:19   ( -76.06, 127.61) 08/21/2025   16:04:06  ( -76.01, 126.71)   24.70                73
 08/21/2025   16:56:07   (  76.15, -65.43) 08/21/2025   16:55:04  (  76.18, -65.45)    2.52                63
 08/21/2025   17:46:51   ( -76.17, 101.83) 08/21/2025   17:45:59  ( -76.16, 101.77)    2.05                52
 08/21/2025   18:37:37   (  76.18, -90.88) 08/21/2025   18:37:00  (  76.19, -90.88)    1.71                37
 08/21/2025   19:28:21   ( -76.19,  76.38) 08/21/2025   19:27:55  ( -76.18,  76.34)    1.97                26
 08/21/2025   20:19:07   (  76.20,-116.33) 08/21/2025   20:18:56  (  76.21,-116.31)    1.16                11
 08/21/2025   21:09:51   ( -76.21,  50.93) 08/21/2025   21:09:51  ( -76.19,  50.92)    2.32                 0
 08/21/2025   22:00:37   (  76.22,-141.78) 08/21/2025   22:00:52  (  76.22,-141.73)    1.31                15
 08/21/2025   22:51:21   ( -76.24,  25.48) 08/21/2025   22:51:47  ( -76.21,  25.49)    2.94                26
 08/21/2025   23:42:07   (  76.24,-167.23) 08/21/2025   23:42:48  (  76.24,-167.16)    2.01                41
 08/22/2025   00:32:51   ( -76.26,   0.03) 08/22/2025   00:33:43  ( -76.22,   0.07)    3.71                52
 08/22/2025   01:23:37   (  76.26, 167.32) 08/22/2025   01:24:44  (  76.25, 167.41)    2.89                67
 08/22/2025   02:14:24   ( -76.41, -25.92) 08/22/2025   02:15:36  ( -76.37, -24.86)   28.11                72