Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2022 5 17.  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)
 05/17/2022   21:01:41   ( -77.37,  28.16) 05/17/2022   21:00:31  ( -77.35,  26.24)   46.76                70
 05/17/2022   21:52:31   (  77.56,-165.39) 05/17/2022   21:51:25  (  77.58,-165.35)    2.68                66
 05/17/2022   22:43:17   ( -77.56,   1.88) 05/17/2022   22:42:25  ( -77.59,   1.93)    2.72                52
 05/17/2022   23:34:03   (  77.58, 169.11) 05/17/2022   23:33:25  (  77.58, 169.14)    1.06                38
 05/18/2022   00:24:49   ( -77.59, -23.62) 05/18/2022   00:24:25  ( -77.58, -23.58)    1.30                24
 05/18/2022   01:15:35   (  77.61, 143.60) 05/18/2022   01:15:25  (  77.58, 143.64)    3.69                10
 05/18/2022   02:06:20   ( -77.57, -48.93) 05/18/2022   02:06:25  ( -77.58, -49.08)    3.88                 5
 05/18/2022   02:57:06   (  77.59, 118.30) 05/18/2022   02:57:24  (  77.61, 118.34)    2.54                18
 05/18/2022   03:47:52   ( -77.60, -74.43) 05/18/2022   03:48:24  ( -77.62, -74.39)    2.29                32
 05/18/2022   04:38:38   (  77.62,  92.80) 05/18/2022   04:39:24  (  77.61,  92.83)    1.06                46
 05/18/2022   05:29:24   ( -77.63, -99.93) 05/18/2022   05:30:24  ( -77.62, -99.90)    1.25                60
 05/18/2022   06:20:10   (  77.64,  67.29) 05/18/2022   06:21:24  (  77.61,  67.32)    3.78                74