Simultaneous Nadir Overpasses (SNOs) between FY3D and NOAA-19
TLE Epoch: 2021 6 24.  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)
 07/03/2021   08:49:04   (  78.22,  24.80) 07/03/2021   08:47:56  (  78.20,  22.18)   59.45                68
 07/03/2021   09:39:54   ( -78.44,-169.15) 07/03/2021   09:38:51  ( -78.44,-169.01)    3.10                63
 07/03/2021   10:30:39   (  78.45,  -1.93) 07/03/2021   10:29:50  (  78.43,  -1.86)    3.20                49
 07/03/2021   11:21:23   ( -78.44, 165.47) 07/03/2021   11:20:51  ( -78.45, 165.56)    2.70                32
 07/03/2021   12:12:08   (  78.45, -27.31) 07/03/2021   12:11:50  (  78.44, -27.29)    1.95                18
 07/03/2021   13:02:52   ( -78.44, 140.08) 07/03/2021   13:02:51  ( -78.46, 140.14)    2.94                 1
 07/03/2021   13:53:37   (  78.46, -52.70) 07/03/2021   13:53:50  (  78.45, -52.71)    0.98                13
 07/03/2021   14:44:21   ( -78.44, 114.70) 07/03/2021   14:44:51  ( -78.48, 114.72)    3.70                30
 07/03/2021   15:35:06   (  78.46, -78.08) 07/03/2021   15:35:50  (  78.46, -78.14)    1.32                44
 07/03/2021   16:25:51   ( -78.48,  89.09) 07/03/2021   16:26:52  ( -78.45,  89.06)    3.55                61
 07/03/2021   17:16:35   (  78.46,-103.46) 07/03/2021   17:17:50  (  78.47,-103.57)    2.47                75