Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2022 12 8.  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)
 12/16/2022   20:42:38   ( -76.80,  37.34) 12/16/2022   20:41:27  ( -76.81,  35.80)   39.12                71
 12/16/2022   21:33:29   (  76.99,-156.12) 12/16/2022   21:32:17  (  76.98,-156.17)    1.41                72
 12/16/2022   22:24:14   ( -76.98,  11.20) 12/16/2022   22:23:22  ( -77.00,  11.15)    2.19                52
 12/16/2022   23:15:01   (  77.00, 178.45) 12/16/2022   23:14:16  (  77.00, 178.44)    0.58                45
 12/17/2022   00:05:46   ( -77.00, -14.23) 12/17/2022   00:05:21  ( -77.02, -14.24)    3.11                25
 12/17/2022   00:56:33   (  77.01, 153.02) 12/17/2022   00:56:15  (  77.03, 153.05)    2.07                18
 12/17/2022   01:47:18   ( -77.01, -39.66) 12/17/2022   01:47:21  ( -77.01, -39.82)    4.06                 3
 12/17/2022   02:38:05   (  77.02, 127.59) 12/17/2022   02:38:15  (  77.01, 127.47)    3.19                10
 12/17/2022   03:28:49   ( -77.02, -65.08) 12/17/2022   03:29:19  ( -77.03, -65.21)    3.30                30
 12/17/2022   04:19:36   (  77.03, 102.16) 12/17/2022   04:20:13  (  77.03, 102.08)    1.88                37
 12/17/2022   05:10:22   ( -77.07, -90.70) 12/17/2022   05:11:18  ( -77.05, -90.60)    3.28                56
 12/17/2022   06:01:08   (  77.04,  76.73) 12/17/2022   06:02:12  (  77.06,  76.69)    1.57                64
 12/17/2022   06:52:03   ( -77.46,-117.82) 12/17/2022   06:53:09  ( -77.40,-114.44)   82.15                66