Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 8 2.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 08/02/2025   05:55:15   (  70.41,  87.03) 08/02/2025   05:56:25  (  70.33,  87.69)   25.86                70
 08/02/2025   06:45:52   ( -70.04,-105.07) 08/02/2025   06:45:58  ( -70.06,-105.08)    2.38                 6
 08/02/2025   07:36:36   (  69.94,  62.39) 08/02/2025   07:35:25  (  69.96,  62.42)    2.28                71
 08/04/2025   22:12:05   (  70.13,-156.76) 08/04/2025   22:13:01  (  70.11,-156.77)    2.55                56
 08/04/2025   23:02:47   ( -70.01,  10.74) 08/04/2025   23:02:31  ( -70.00,  10.71)    1.82                16
 08/04/2025   23:53:18   (  69.23, 179.19) 08/04/2025   23:52:09  (  69.29, 177.38)   71.32                69
 08/07/2025   14:28:59   (  70.06, -40.88) 08/07/2025   14:29:33  (  70.08, -40.93)    2.77                34
 08/07/2025   15:19:42   ( -69.99, 126.54) 08/07/2025   15:19:03  ( -69.98, 126.55)    1.98                39
 08/10/2025   05:55:20   ( -70.71, -93.44) 08/10/2025   05:56:29  ( -70.58, -91.97)   56.12                69
 08/10/2025   06:45:53   (  70.05,  74.90) 08/10/2025   06:46:04  (  70.04,  74.88)    2.10                11
 08/10/2025   07:36:35   ( -69.93,-117.59) 08/10/2025   07:35:34  ( -69.93,-117.63)    1.74                61
 08/12/2025   22:12:04   ( -70.12,  23.25) 08/12/2025   22:13:08  ( -70.14,  23.26)    1.75                64
 08/12/2025   23:02:48   (  70.05,-169.32) 08/12/2025   23:02:35  (  70.03,-169.26)    3.41                13
 08/12/2025   23:53:22   ( -69.50,  -1.19) 08/12/2025   23:52:11  ( -69.60,  -2.22)   41.80                71
 08/15/2025   14:28:59   ( -70.12, 139.03) 08/15/2025   14:29:39  ( -70.11, 139.10)    2.66                40
 08/15/2025   15:19:42   (  70.00, -53.47) 08/15/2025   15:19:06  (  70.00, -53.42)    1.91                36