Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 10 26.  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)
 10/27/2025   22:36:43   (  70.96,-164.18) 10/27/2025   22:37:50  (  70.83,-161.93)   83.12                67
 10/27/2025   23:27:09   ( -70.06,   4.58) 10/27/2025   23:27:32  ( -70.06,   4.57)    0.48                23
 10/28/2025   00:17:54   (  69.97, 172.02) 10/28/2025   00:16:59  (  69.96, 172.07)    2.45                55
 10/30/2025   14:53:20   (  70.26, -47.25) 10/30/2025   14:54:31  (  70.24, -46.93)   11.95                71
 10/30/2025   15:43:59   ( -70.04, 120.41) 10/30/2025   15:44:03  ( -70.02, 120.39)    1.70                 4
 10/30/2025   16:34:43   (  69.90, -72.07) 10/30/2025   16:33:30  (  69.92, -72.12)    2.40                73
 11/02/2025   07:10:08   (  70.14,  68.73) 11/02/2025   07:11:03  (  70.12,  68.76)    3.21                55
 11/02/2025   08:00:49   ( -70.02,-123.77) 11/02/2025   08:00:33  ( -70.01,-123.75)    1.15                16
 11/02/2025   08:51:20   (  69.20,  44.74) 11/02/2025   08:50:12  (  69.24,  42.84)   75.04                68
 11/04/2025   23:26:56   (  70.09,-175.39) 11/04/2025   23:27:32  (  70.07,-175.42)    1.99                36
 11/05/2025   00:17:37   ( -69.96,  -7.88) 11/05/2025   00:17:02  ( -69.97,  -7.93)    2.16                35
 11/07/2025   14:53:15   ( -70.89, 131.81) 11/07/2025   14:54:23  ( -70.77, 133.85)   75.67                68
 11/07/2025   15:43:45   (  70.04, -59.53) 11/07/2025   15:44:01  (  70.05, -59.56)    1.79                16
 11/07/2025   16:34:27   ( -69.96, 107.91) 11/07/2025   16:33:31  ( -69.95, 107.93)    1.05                56