Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 6 5.  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)
 06/05/2025   21:46:31   ( -70.84,  28.56) 06/05/2025   21:47:39  ( -70.74,  30.34)   66.18                68
 06/05/2025   22:37:04   (  70.12,-162.98) 06/05/2025   22:37:16  (  70.09,-162.96)    2.54                12
 06/05/2025   23:27:45   ( -70.01,   4.51) 06/05/2025   23:26:46  ( -69.98,   4.51)    2.54                59
 06/08/2025   14:03:15   ( -70.15, 145.42) 06/08/2025   14:04:22  ( -70.15, 145.34)    2.99                67
 06/08/2025   14:54:00   (  70.06, -47.13) 06/08/2025   14:53:49  (  70.05, -47.16)    1.81                11
 06/08/2025   15:44:35   ( -69.63, 120.83) 06/08/2025   15:43:23  ( -69.72, 120.02)   33.12                72
 06/11/2025   06:20:12   ( -70.15, -98.82) 06/11/2025   06:20:54  ( -70.14, -98.80)    1.62                42
 06/11/2025   07:10:56   (  70.01,  68.71) 06/11/2025   07:10:21  (  70.03,  68.70)    2.90                35
 06/13/2025   21:46:37   (  70.80,-151.41) 06/13/2025   21:47:46  (  70.70,-149.72)   62.77                69
 06/13/2025   22:37:07   ( -70.11,  17.02) 06/13/2025   22:37:25  ( -70.11,  17.03)    0.65                18
 06/13/2025   23:27:52   (  70.02,-175.54) 06/13/2025   23:26:52  (  70.00,-175.48)    3.06                60
 06/16/2025   14:03:21   (  70.14, -34.58) 06/16/2025   14:04:27  (  70.16, -34.66)    3.60                66
 06/16/2025   14:54:03   ( -70.07, 132.84) 06/16/2025   14:53:57  ( -70.06, 132.84)    1.16                 6
 06/16/2025   15:44:40   (  69.56, -59.09) 06/16/2025   15:43:29  (  69.67, -60.06)   39.65                71