Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 10 2.  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)
 10/03/2025   22:37:01   ( -70.14,  17.00) 10/03/2025   22:38:02  ( -70.13,  17.04)    1.78                61
 10/03/2025   23:27:45   (  70.00,-175.48) 10/03/2025   23:27:30  (  69.97,-175.54)    3.44                15
 10/04/2025   00:18:17   ( -69.41,  -7.29) 10/04/2025   00:17:07  ( -69.48,  -8.58)   51.03                70
 10/06/2025   14:53:51   ( -70.09, 132.86) 10/06/2025   14:54:32  ( -70.11, 132.88)    2.73                41
 10/06/2025   15:44:36   (  70.00, -59.70) 10/06/2025   15:43:59  (  70.00, -59.62)    2.79                37
 10/09/2025   06:20:14   (  70.85,  80.12) 10/09/2025   06:21:22  (  70.74,  82.06)   71.96                68
 10/09/2025   07:10:42   ( -70.05,-111.29) 10/09/2025   07:11:03  ( -70.03,-111.34)    2.53                21
 10/09/2025   08:01:27   (  69.96,  56.15) 10/09/2025   08:00:29  (  69.98,  56.22)    3.40                58
 10/11/2025   22:36:52   (  70.14,-162.97) 10/11/2025   22:38:02  (  70.12,-162.98)    2.63                70
 10/11/2025   23:27:33   ( -70.03,   4.53) 10/11/2025   23:27:32  ( -70.02,   4.51)    1.30                 1
 10/12/2025   00:18:14   (  69.73, 172.28) 10/12/2025   00:17:01  (  69.79, 171.84)   18.25                73
 10/14/2025   14:53:42   (  70.08, -47.09) 10/14/2025   14:54:30  (  70.10, -47.12)    2.09                48
 10/14/2025   15:44:24   ( -70.02, 120.33) 10/14/2025   15:44:00  ( -70.00, 120.38)    2.74                24