Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 6 8.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 06/08/2025   14:03:15   ( -70.16, 145.41) 06/08/2025   14:04:22  ( -70.14, 145.34)    3.38                67
 06/08/2025   14:54:00   (  70.06, -47.13) 06/08/2025   14:53:49  (  70.05, -47.16)    1.93                11
 06/08/2025   15:44:35   ( -69.63, 120.83) 06/08/2025   15:43:23  ( -69.71, 120.01)   32.79                72
 06/11/2025   06:20:12   ( -70.15, -98.82) 06/11/2025   06:20:54  ( -70.14, -98.80)    1.72                42
 06/11/2025   07:10:57   (  70.06,  68.64) 06/11/2025   07:10:21  (  70.04,  68.70)    3.20                36
 06/13/2025   21:46:38   (  70.84,-151.48) 06/13/2025   21:47:46  (  70.72,-149.71)   66.41                68
 06/13/2025   22:37:07   ( -70.10,  17.03) 06/13/2025   22:37:25  ( -70.12,  17.05)    1.99                18
 06/13/2025   23:27:52   (  70.01,-175.52) 06/13/2025   23:26:52  (  70.01,-175.46)    2.28                60
 06/16/2025   14:03:22   (  70.17, -34.63) 06/16/2025   14:04:27  (  70.18, -34.63)    1.22                65
 06/16/2025   14:54:03   ( -70.05, 132.87) 06/16/2025   14:53:57  ( -70.08, 132.86)    2.91                 6
 06/16/2025   15:44:41   (  69.59, -59.14) 06/16/2025   15:43:30  (  69.63, -60.11)   38.03                71
 06/19/2025   06:20:18   (  70.12,  81.20) 06/19/2025   06:20:59  (  70.12,  81.16)    1.74                41
 06/19/2025   07:10:59   ( -70.00,-111.30) 06/19/2025   07:10:29  ( -70.02,-111.35)    2.31                30
 06/21/2025   21:46:44   ( -70.95,  28.33) 06/21/2025   21:47:51  ( -70.86,  30.50)   79.86                67
 06/21/2025   22:37:14   (  70.09,-162.98) 06/21/2025   22:37:30  (  70.09,-163.00)    0.76                16
 06/21/2025   23:27:56   ( -70.01,   4.45) 06/21/2025   23:27:00  ( -69.99,   4.50)    2.96                56