Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 7 12.  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, -34.98) 07/18/2025   14:02:29  (  70.35, -36.59)   60.35                70
 07/18/2025   14:54:31   ( -70.78, 131.66) 07/18/2025   14:53:17  ( -70.79, 131.42)    8.92                74
 07/18/2025   15:45:19   (  70.88, -61.21) 07/18/2025   15:44:15  (  70.88, -61.17)    1.37                64
 07/18/2025   16:36:03   ( -70.88, 106.10) 07/18/2025   16:35:12  ( -70.86, 106.06)    2.89                51
 07/18/2025   17:26:49   (  70.89, -86.59) 07/18/2025   17:26:11  (  70.90, -86.62)    2.13                38
 07/18/2025   18:17:34   ( -70.94,  80.64) 07/18/2025   18:17:07  ( -70.93,  80.70)    2.35                27
 07/18/2025   19:08:20   (  70.94,-112.06) 07/18/2025   19:08:07  (  70.92,-112.07)    2.20                13
 07/18/2025   19:59:04   ( -70.94,  55.26) 07/18/2025   19:59:03  ( -70.95,  55.25)    1.09                 1
 07/18/2025   20:49:50   (  70.95,-137.44) 07/18/2025   20:50:03  (  70.94,-137.52)    2.74                13
 07/18/2025   21:40:35   ( -71.00,  29.79) 07/18/2025   21:40:59  ( -70.97,  29.80)    3.03                24
 07/18/2025   22:31:21   (  71.00,-162.91) 07/18/2025   22:31:58  (  71.02,-162.87)    1.87                37
 07/18/2025   23:22:05   ( -71.00,   4.40) 07/18/2025   23:22:55  ( -70.99,   4.35)    2.34                50
 07/19/2025   00:12:51   (  71.01, 171.71) 07/19/2025   00:13:54  (  71.04, 171.68)    3.27                63
 07/19/2025   01:03:36   ( -71.06, -21.06) 07/19/2025   01:04:50  ( -71.06, -21.01)    2.07                74
 07/19/2025   01:54:32   (  71.58, 145.33) 07/19/2025   01:55:41  (  71.52, 147.06)   61.60                69