Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 5 1.  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   12:09:04   ( -75.32, 163.16) 05/08/2023   12:07:54  ( -75.29, 163.13)    3.39                70
 05/08/2023   12:59:50   (  75.33, -29.56) 05/08/2023   12:58:47  (  75.31, -29.53)    2.01                63
 05/08/2023   13:50:34   ( -75.32, 137.78) 05/08/2023   13:49:52  ( -75.34, 137.80)    2.45                42
 05/08/2023   14:41:20   (  75.33, -54.94) 05/08/2023   14:40:46  (  75.32, -55.00)    2.15                34
 05/08/2023   15:32:04   ( -75.32, 112.39) 05/08/2023   15:31:51  ( -75.35, 112.33)    3.27                13
 05/08/2023   16:22:51   (  75.38, -80.46) 05/08/2023   16:22:44  (  75.37, -80.32)    4.18                 7
 05/08/2023   17:13:35   ( -75.37,  86.87) 05/08/2023   17:13:50  ( -75.36,  86.86)    1.94                15
 05/08/2023   18:04:21   (  75.38,-105.85) 05/08/2023   18:04:43  (  75.38,-105.79)    1.68                22
 05/08/2023   18:55:05   ( -75.38,  61.48) 05/08/2023   18:55:49  ( -75.36,  61.39)    3.00                44
 05/08/2023   19:45:51   (  75.38,-131.23) 05/08/2023   19:46:42  (  75.39,-131.26)    0.83                51
 05/08/2023   20:36:36   ( -75.43,  35.96) 05/08/2023   20:37:47  ( -75.42,  36.07)    3.29                71
 05/08/2023   21:27:26   (  75.62,-157.34) 05/08/2023   21:28:37  (  75.57,-156.13)   34.08                71