Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2022 4 12.  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)
 04/17/2022   16:50:04   ( -77.63,  89.64) 04/17/2022   16:48:50  ( -77.65,  89.59)    2.18                74
 04/17/2022   17:40:51   (  77.67,-103.22) 04/17/2022   17:39:44  (  77.65,-103.14)    2.92                67
 04/17/2022   18:31:36   ( -77.65,  64.14) 04/17/2022   18:30:50  ( -77.65,  64.10)    1.33                46
 04/17/2022   19:22:22   (  77.65,-128.52) 04/17/2022   19:21:44  (  77.65,-128.63)    2.76                38
 04/17/2022   20:13:08   ( -77.68,  38.65) 04/17/2022   20:12:50  ( -77.65,  38.60)    3.56                18
 04/17/2022   21:03:54   (  77.67,-154.02) 04/17/2022   21:03:43  (  77.69,-153.92)    2.69                11
 04/17/2022   21:54:39   ( -77.66,  13.35) 04/17/2022   21:54:49  ( -77.69,  13.31)    3.00                10
 04/17/2022   22:45:26   (  77.70,-179.52) 04/17/2022   22:45:43  (  77.69,-179.42)    2.63                17
 04/17/2022   23:36:11   ( -77.69, -12.15) 04/17/2022   23:36:49  ( -77.69, -12.18)    0.84                38
 04/18/2022   00:26:57   (  77.68, 155.19) 04/18/2022   00:27:43  (  77.69, 155.09)    2.46                46
 04/18/2022   01:17:43   ( -77.71, -37.65) 04/18/2022   01:18:49  ( -77.69, -37.68)    2.50                66
 04/18/2022   02:08:29   (  77.70, 129.69) 04/18/2022   02:09:43  (  77.69, 129.59)    2.97                74