Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 6 6.  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   ( -70.18, 145.39) 06/08/2025   14:04:21  ( -70.18, 145.39)    0.76                66
 06/08/2025   14:54:00   (  70.08, -47.16) 06/08/2025   14:53:48  (  70.08, -47.11)    1.89                12
 06/08/2025   15:44:35   ( -69.65, 120.80) 06/08/2025   15:43:23  ( -69.70, 119.99)   31.86                72
 06/11/2025   06:20:11   ( -70.12, -98.76) 06/11/2025   06:20:54  ( -70.13, -98.82)    2.26                43
 06/11/2025   07:10:56   (  70.02,  68.69) 06/11/2025   07:10:21  (  70.02,  68.68)    0.48                35
 06/13/2025   21:46:38   (  70.81,-151.43) 06/13/2025   21:47:47  (  70.70,-149.73)   63.52                69
 06/13/2025   22:37:08   ( -70.12,  17.00) 06/13/2025   22:37:26  ( -70.11,  17.03)    1.63                18
 06/13/2025   23:27:52   (  69.97,-175.47) 06/13/2025   23:26:53  (  70.00,-175.48)    2.70                59
 06/16/2025   14:03:23   (  70.19, -34.67) 06/16/2025   14:04:28  (  70.17, -34.64)    2.51                65
 06/16/2025   14:54:03   ( -70.07, 132.84) 06/16/2025   14:53:57  ( -70.07, 132.85)    0.59                 6
 06/16/2025   15:44:41   (  69.61, -59.17) 06/16/2025   15:43:30  (  69.63, -60.12)   36.82                71
 06/19/2025   06:20:18   (  70.15,  81.16) 06/19/2025   06:20:58  (  70.17,  81.23)    3.35                40
 06/19/2025   07:10:59   ( -70.03,-111.33) 06/19/2025   07:10:29  ( -70.02,-111.35)    1.46                30