Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 3 9.  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)
 03/10/2023   20:43:53   ( -75.31,  34.64) 03/10/2023   20:42:43  ( -75.30,  32.67)   55.60                70
 03/10/2023   21:34:45   (  75.60,-158.97) 03/10/2023   21:33:39  (  75.63,-158.98)    3.43                66
 03/10/2023   22:25:30   ( -75.64,   8.23) 03/10/2023   22:24:35  ( -75.63,   8.28)    1.80                55
 03/10/2023   23:16:16   (  75.66, 175.49) 03/10/2023   23:15:38  (  75.65, 175.58)    2.65                38
 03/11/2023   00:07:00   ( -75.65, -17.17) 03/11/2023   00:06:34  ( -75.64, -17.17)    0.34                26
 03/11/2023   00:57:46   (  75.66, 150.09) 03/11/2023   00:57:37  (  75.66, 150.14)    1.21                 9
 03/11/2023   01:48:30   ( -75.65, -42.56) 03/11/2023   01:48:33  ( -75.66, -42.61)    1.45                 3
 03/11/2023   02:39:16   (  75.67, 124.70) 03/11/2023   02:39:36  (  75.68, 124.69)    0.96                20
 03/11/2023   03:30:00   ( -75.66, -67.96) 03/11/2023   03:30:32  ( -75.68, -68.05)    3.03                32
 03/11/2023   04:20:46   (  75.68,  99.30) 03/11/2023   04:21:35  (  75.69,  99.25)    2.31                49
 03/11/2023   05:11:31   ( -75.71, -93.50) 03/11/2023   05:12:31  ( -75.69, -93.49)    2.63                60
 03/11/2023   06:02:19   (  75.82,  73.45) 03/11/2023   06:03:32  (  75.80,  74.12)   18.47                73