Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 7 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)
 07/18/2025   14:03:39   (  70.35, -34.97) 07/18/2025   14:02:29  (  70.36, -36.56)   59.51                70
 07/18/2025   14:54:32   ( -70.82, 131.58) 07/18/2025   14:53:17  ( -70.81, 131.45)    4.83                75
 07/18/2025   15:45:19   (  70.88, -61.20) 07/18/2025   15:44:15  (  70.90, -61.14)    3.25                64
 07/18/2025   16:36:03   ( -70.88, 106.11) 07/18/2025   16:35:12  ( -70.88, 106.09)    1.04                51
 07/18/2025   17:26:50   (  70.94, -86.67) 07/18/2025   17:26:11  (  70.92, -86.59)    3.41                39
 07/18/2025   18:17:34   ( -70.93,  80.65) 07/18/2025   18:17:08  ( -70.90,  80.64)    3.38                26
 07/18/2025   19:08:20   (  70.94,-112.05) 07/18/2025   19:08:07  (  70.94,-112.04)    0.61                13
 07/18/2025   19:59:04   ( -70.94,  55.27) 07/18/2025   19:59:04  ( -70.92,  55.19)    3.05                 0
 07/18/2025   20:49:50   (  70.94,-137.44) 07/18/2025   20:50:03  (  70.96,-137.49)    2.68                13
 07/18/2025   21:40:35   ( -70.99,  29.80) 07/18/2025   21:40:59  ( -70.99,  29.84)    1.40                24
 07/18/2025   22:31:21   (  71.00,-162.91) 07/18/2025   22:31:59  (  70.98,-162.93)    2.28                38
 07/18/2025   23:22:05   ( -71.00,   4.42) 07/18/2025   23:22:55  ( -71.01,   4.39)    2.09                50
 07/19/2025   00:12:52   (  71.06, 171.62) 07/19/2025   00:13:54  (  71.05, 171.71)    3.07                62
 07/19/2025   01:03:37   ( -71.11, -21.14) 07/19/2025   01:04:50  ( -71.08, -20.97)    6.56                73
 07/19/2025   01:54:32   (  71.58, 145.33) 07/19/2025   01:55:41  (  71.54, 147.10)   62.27                69