Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 5 8.  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   ( -75.31, 163.17) 05/08/2023   12:07:54  ( -75.30, 163.15)    2.00                70
 05/08/2023   12:59:50   (  75.31, -29.52) 05/08/2023   12:58:47  (  75.32, -29.49)    1.28                63
 05/08/2023   13:50:34   ( -75.32, 137.79) 05/08/2023   13:49:53  ( -75.30, 137.68)    3.48                41
 05/08/2023   14:41:20   (  75.32, -54.90) 05/08/2023   14:40:46  (  75.33, -54.96)    2.09                34
 05/08/2023   15:32:05   ( -75.37, 112.26) 05/08/2023   15:31:51  ( -75.36, 112.35)    2.73                14
 05/08/2023   16:22:51   (  75.37, -80.43) 05/08/2023   16:22:45  (  75.34, -80.43)    3.39                 6
 05/08/2023   17:13:35   ( -75.37,  86.88) 05/08/2023   17:13:50  ( -75.36,  86.88)    0.62                15
 05/08/2023   18:04:21   (  75.37,-105.81) 05/08/2023   18:04:43  (  75.39,-105.75)    2.80                22
 05/08/2023   18:55:05   ( -75.37,  61.50) 05/08/2023   18:55:49  ( -75.37,  61.41)    2.44                44
 05/08/2023   19:45:51   (  75.37,-131.20) 05/08/2023   19:46:42  (  75.40,-131.22)    2.75                51
 05/08/2023   20:36:36   ( -75.42,  35.97) 05/08/2023   20:37:47  ( -75.42,  36.09)    3.29                71
 05/08/2023   21:27:26   (  75.61,-157.31) 05/08/2023   21:28:37  (  75.59,-156.09)   33.91                71