Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 11 24.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 11/24/2025   23:02:13   ( -70.06,  10.85) 11/24/2025   23:02:53  ( -70.07,  10.78)    3.31                40
 11/24/2025   23:52:58   (  69.99, 178.25) 11/24/2025   23:52:20  (  69.98, 178.28)    2.22                38
 11/27/2025   14:28:39   (  70.56, -41.50) 11/27/2025   14:29:49  (  70.42, -40.48)   41.04                70
 11/27/2025   15:19:12   ( -70.03, 126.64) 11/27/2025   15:19:23  ( -70.04, 126.60)    1.43                11
 11/27/2025   16:09:56   (  69.92, -65.89) 11/27/2025   16:08:50  (  69.93, -65.90)    1.08                66
 11/30/2025   06:45:30   (  70.13,  74.93) 11/30/2025   06:46:23  (  70.14,  74.98)    2.20                53
 11/30/2025   07:36:12   ( -70.02,-117.59) 11/30/2025   07:35:53  ( -70.03,-117.54)    2.10                19
 11/30/2025   08:26:41   (  69.12,  51.03) 11/30/2025   08:25:34  (  69.15,  48.91)   83.95                67
 12/02/2025   23:02:29   (  70.08,-169.24) 12/02/2025   23:02:53  (  70.10,-169.19)    2.76                24
 12/02/2025   23:53:11   ( -69.96,  -1.74) 12/02/2025   23:52:24  ( -69.94,  -1.79)    3.06                47
 12/05/2025   14:28:44   ( -70.12, 139.14) 12/05/2025   14:29:56  ( -70.14, 139.11)    2.99                72
 12/05/2025   15:19:28   (  70.03, -53.41) 12/05/2025   15:19:23  (  70.03, -53.40)    0.40                 5
 12/05/2025   16:10:08   ( -69.80, 114.25) 12/05/2025   16:08:54  ( -69.87, 114.01)   12.15                74