Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 5 4.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 05/08/2023   12:09:05   ( -75.33, 163.12) 05/08/2023   12:07:54  ( -75.32, 163.24)    3.52                71
 05/08/2023   12:59:50   (  75.29, -29.45) 05/08/2023   12:58:48  (  75.30, -29.56)    3.28                62
 05/08/2023   13:50:35   ( -75.33, 137.73) 05/08/2023   13:49:53  ( -75.33, 137.77)    1.01                42
 05/08/2023   14:41:21   (  75.34, -54.97) 05/08/2023   14:40:46  (  75.35, -54.88)    3.02                35
 05/08/2023   15:32:05   ( -75.34, 112.35) 05/08/2023   15:31:52  ( -75.34, 112.30)    1.56                13
 05/08/2023   16:22:50   (  75.34, -80.36) 05/08/2023   16:22:44  (  75.36, -80.35)    1.97                 6
 05/08/2023   17:13:34   ( -75.34,  86.97) 05/08/2023   17:13:50  ( -75.35,  86.83)    4.07                16
 05/08/2023   18:04:21   (  75.39,-105.88) 05/08/2023   18:04:43  (  75.37,-105.82)    3.31                22
 05/08/2023   18:55:05   ( -75.39,  61.44) 05/08/2023   18:55:48  ( -75.40,  61.50)    1.90                43
 05/08/2023   19:45:51   (  75.40,-131.27) 05/08/2023   19:46:42  (  75.38,-131.29)    2.40                51
 05/08/2023   20:36:35   ( -75.39,  36.06) 05/08/2023   20:37:47  ( -75.41,  36.03)    1.59                72
 05/08/2023   21:27:25   (  75.59,-157.23) 05/08/2023   21:28:37  (  75.57,-156.16)   29.88                72