Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 7 15.  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)
 07/18/2025   14:03:39   (  70.36, -34.99) 07/18/2025   14:02:29  (  70.34, -36.60)   60.13                70
 07/18/2025   14:54:31   ( -70.79, 131.64) 07/18/2025   14:53:17  ( -70.78, 131.40)    8.46                74
 07/18/2025   15:45:19   (  70.89, -61.23) 07/18/2025   15:44:15  (  70.88, -61.18)    2.41                64
 07/18/2025   16:36:03   ( -70.90, 106.08) 07/18/2025   16:35:11  ( -70.91, 106.13)    2.06                52
 07/18/2025   17:26:49   (  70.90, -86.61) 07/18/2025   17:26:11  (  70.90, -86.63)    0.77                38
 07/18/2025   18:17:33   ( -70.90,  80.70) 07/18/2025   18:17:07  ( -70.93,  80.68)    2.62                26
 07/18/2025   19:08:19   (  70.90,-111.99) 07/18/2025   19:08:07  (  70.92,-112.08)    3.68                12
 07/18/2025   19:59:04   ( -70.96,  55.23) 07/18/2025   19:59:03  ( -70.95,  55.23)    1.50                 1
 07/18/2025   20:49:50   (  70.96,-137.46) 07/18/2025   20:50:03  (  70.94,-137.53)    3.25                13
 07/18/2025   21:40:34   ( -70.96,  29.85) 07/18/2025   21:40:59  ( -70.97,  29.79)    2.35                25
 07/18/2025   22:31:21   (  71.02,-162.93) 07/18/2025   22:31:58  (  71.01,-162.88)    1.71                37
 07/18/2025   23:22:05   ( -71.02,   4.38) 07/18/2025   23:22:54  ( -71.04,   4.43)    2.54                49
 07/19/2025   00:12:51   (  71.02, 171.69) 07/19/2025   00:13:54  (  71.03, 171.67)    1.51                63
 07/19/2025   01:03:36   ( -71.08, -21.09) 07/19/2025   01:04:50  ( -71.06, -21.02)    3.21                74
 07/19/2025   01:54:31   (  71.54, 145.40) 07/19/2025   01:55:41  (  71.51, 147.05)   58.37                70