Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 10 31.  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)
 11/02/2025   07:10:08   (  70.14,  68.73) 11/02/2025   07:11:03  (  70.12,  68.76)    2.66                55
 11/02/2025   08:00:49   ( -70.02,-123.77) 11/02/2025   08:00:33  ( -70.01,-123.76)    2.00                16
 11/02/2025   08:51:20   (  69.19,  44.75) 11/02/2025   08:50:12  (  69.24,  42.84)   75.33                68
 11/04/2025   23:26:56   (  70.08,-175.39) 11/04/2025   23:27:32  (  70.07,-175.42)    2.08                36
 11/05/2025   00:17:37   ( -69.96,  -7.88) 11/05/2025   00:17:02  ( -69.96,  -7.94)    2.26                35
 11/07/2025   14:53:15   ( -70.89, 131.81) 11/07/2025   14:54:23  ( -70.76, 133.83)   75.28                68
 11/07/2025   15:43:45   (  70.04, -59.52) 11/07/2025   15:44:01  (  70.05, -59.57)    2.31                16
 11/07/2025   16:34:27   ( -69.96, 107.91) 11/07/2025   16:33:31  ( -69.94, 107.91)    2.25                56
 11/10/2025   07:09:51   ( -70.17,-111.23) 11/10/2025   07:11:02  ( -70.16,-111.17)    2.58                71
 11/10/2025   08:00:35   (  70.05,  56.25) 11/10/2025   08:00:29  (  70.05,  56.31)    2.42                 6
 11/10/2025   08:51:14   ( -69.81,-136.07) 11/10/2025   08:50:01  ( -69.84,-136.35)   11.12                73
 11/12/2025   23:26:40   ( -70.13,   4.62) 11/12/2025   23:27:30  ( -70.14,   4.68)    2.60                50
 11/13/2025   00:17:24   (  70.03, 172.09) 11/13/2025   00:16:57  (  70.02, 172.16)    2.74                27