Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 8 27.  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)
 08/28/2025   22:12:01   ( -70.12,  23.27) 08/28/2025   22:13:11  ( -70.15,  23.27)    3.15                70
 08/28/2025   23:02:45   (  70.03,-169.28) 08/28/2025   23:02:38  (  70.05,-169.22)    3.26                 7
 08/28/2025   23:53:23   ( -69.70,  -1.48) 08/28/2025   23:52:11  ( -69.77,  -1.98)   20.82                72
 08/31/2025   14:28:55   ( -70.09, 139.09) 08/31/2025   14:29:40  ( -70.12, 139.12)    3.24                45
 08/31/2025   15:19:38   (  69.95, -53.38) 08/31/2025   15:19:08  (  69.96, -53.46)    3.53                30
 09/03/2025   05:55:21   (  70.92,  86.22) 09/03/2025   05:56:28  (  70.78,  88.35)   79.14                67
 09/03/2025   06:45:49   ( -70.07,-105.11) 09/03/2025   06:46:09  ( -70.07,-105.07)    1.50                20
 09/03/2025   07:36:32   (  69.92,  62.43) 09/03/2025   07:35:37  (  69.91,  62.35)    3.29                55
 09/05/2025   22:12:00   (  70.11,-156.71) 09/05/2025   22:13:08  (  70.11,-156.76)    1.88                68
 09/05/2025   23:02:42   ( -70.00,  10.77) 09/05/2025   23:02:38  ( -70.00,  10.72)    2.07                 4
 09/05/2025   23:53:21   (  69.64, 178.62) 09/05/2025   23:52:09  (  69.67, 177.91)   27.55                72
 09/08/2025   14:28:53   (  70.10, -40.92) 09/08/2025   14:29:34  (  70.12, -40.85)    3.34                41
 09/08/2025   15:19:35   ( -69.99, 126.56) 09/08/2025   15:19:04  ( -70.01, 126.63)    3.45                31