Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 5 5.  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   ( -75.33, 163.12) 05/08/2023   12:07:53  ( -75.32, 163.24)    3.38                71
 05/08/2023   12:59:49   (  75.29, -29.44) 05/08/2023   12:58:47  (  75.30, -29.55)    3.62                62
 05/08/2023   13:50:34   ( -75.33, 137.74) 05/08/2023   13:49:52  ( -75.33, 137.77)    0.86                42
 05/08/2023   14:41:20   (  75.34, -54.96) 05/08/2023   14:40:45  (  75.36, -54.88)    3.19                35
 05/08/2023   15:32:04   ( -75.34, 112.36) 05/08/2023   15:31:51  ( -75.34, 112.30)    1.68                13
 05/08/2023   16:22:50   (  75.34, -80.35) 05/08/2023   16:22:44  (  75.36, -80.35)    2.47                 6
 05/08/2023   17:13:35   ( -75.39,  86.83) 05/08/2023   17:13:49  ( -75.39,  86.97)    4.06                14
 05/08/2023   18:04:21   (  75.39,-105.88) 05/08/2023   18:04:43  (  75.37,-105.82)    2.82                22
 05/08/2023   18:55:05   ( -75.39,  61.45) 05/08/2023   18:55:48  ( -75.40,  61.50)    1.84                43
 05/08/2023   19:45:51   (  75.39,-131.26) 05/08/2023   19:46:42  (  75.38,-131.29)    2.00                51
 05/08/2023   20:36:35   ( -75.39,  36.06) 05/08/2023   20:37:47  ( -75.40,  36.03)    1.72                72
 05/08/2023   21:27:26   (  75.63,-157.37) 05/08/2023   21:28:37  (  75.57,-156.16)   34.43                71