Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 5 7.  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, 163.19) 05/08/2023   12:07:54  ( -75.30, 163.17)    0.95                70
 05/08/2023   12:59:50   (  75.31, -29.51) 05/08/2023   12:58:47  (  75.33, -29.47)    2.06                63
 05/08/2023   13:50:34   ( -75.31, 137.81) 05/08/2023   13:49:53  ( -75.31, 137.70)    3.14                41
 05/08/2023   14:41:20   (  75.31, -54.89) 05/08/2023   14:40:46  (  75.33, -54.95)    2.74                34
 05/08/2023   15:32:05   ( -75.36, 112.28) 05/08/2023   15:31:51  ( -75.36, 112.37)    2.55                14
 05/08/2023   16:22:51   (  75.36, -80.42) 05/08/2023   16:22:45  (  75.34, -80.42)    2.50                 6
 05/08/2023   17:13:35   ( -75.36,  86.90) 05/08/2023   17:13:50  ( -75.37,  86.90)    0.53                15
 05/08/2023   18:04:21   (  75.37,-105.80) 05/08/2023   18:04:44  (  75.35,-105.89)    3.13                23
 05/08/2023   18:55:05   ( -75.37,  61.51) 05/08/2023   18:55:49  ( -75.38,  61.43)    2.59                44
 05/08/2023   19:45:51   (  75.37,-131.19) 05/08/2023   19:46:42  (  75.40,-131.21)    3.59                51
 05/08/2023   20:36:36   ( -75.42,  35.99) 05/08/2023   20:37:47  ( -75.43,  36.11)    3.57                71
 05/08/2023   21:27:26   (  75.61,-157.30) 05/08/2023   21:28:37  (  75.59,-156.08)   33.90                71