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   (  70.36, -34.99) 07/18/2025   14:02:29  (  70.35, -36.59)   59.59                70
 07/18/2025   14:54:32   ( -70.83, 131.56) 07/18/2025   14:53:17  ( -70.80, 131.43)    6.06                75
 07/18/2025   15:45:19   (  70.89, -61.22) 07/18/2025   15:44:15  (  70.89, -61.17)    2.20                64
 07/18/2025   16:36:03   ( -70.89, 106.10) 07/18/2025   16:35:12  ( -70.87, 106.07)    2.18                51
 07/18/2025   17:26:49   (  70.90, -86.61) 07/18/2025   17:26:11  (  70.91, -86.61)    1.37                38
 07/18/2025   18:17:34   ( -70.94,  80.63) 07/18/2025   18:17:07  ( -70.94,  80.71)    3.06                27
 07/18/2025   19:08:20   (  70.95,-112.08) 07/18/2025   19:08:07  (  70.93,-112.06)    2.71                13
 07/18/2025   19:59:04   ( -70.95,  55.25) 07/18/2025   19:59:03  ( -70.96,  55.26)    1.56                 1
 07/18/2025   20:49:50   (  70.96,-137.46) 07/18/2025   20:50:03  (  70.95,-137.51)    2.09                13
 07/18/2025   21:40:35   ( -71.00,  29.78) 07/18/2025   21:40:59  ( -70.98,  29.81)    2.91                24
 07/18/2025   22:31:21   (  71.01,-162.93) 07/18/2025   22:31:58  (  71.02,-162.87)    2.31                37
 07/18/2025   23:22:05   ( -71.01,   4.40) 07/18/2025   23:22:55  ( -71.00,   4.36)    1.43                50
 07/19/2025   00:12:51   (  71.02, 171.69) 07/19/2025   00:13:54  (  71.04, 171.69)    2.65                63
 07/19/2025   01:03:36   ( -71.06, -21.07) 07/19/2025   01:04:50  ( -71.07, -20.99)    2.98                74
 07/19/2025   01:54:32   (  71.59, 145.31) 07/19/2025   01:55:41  (  71.52, 147.07)   62.49                69