Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 2 15.  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)
 02/15/2025   06:45:29   (  70.19,  74.93) 02/15/2025   06:46:12  (  70.18,  75.00)    2.64                43
 02/15/2025   07:36:10   ( -70.08,-117.59) 02/15/2025   07:35:42  ( -70.07,-117.53)    2.49                28
 02/17/2025   22:11:54   ( -71.01,  22.06) 02/17/2025   22:13:01  ( -70.94,  24.36)   83.89                67
 02/17/2025   23:02:24   (  70.12,-169.22) 02/17/2025   23:02:41  (  70.12,-169.20)    0.61                17
 02/17/2025   23:53:05   ( -70.01,  -1.73) 02/17/2025   23:52:11  ( -70.01,  -1.72)    0.20                54
 02/20/2025   14:28:35   ( -70.17, 139.17) 02/20/2025   14:29:43  ( -70.19, 139.13)    3.06                68
 02/20/2025   15:19:20   (  70.08, -53.38) 02/20/2025   15:19:10  (  70.08, -53.38)    0.85                10
 02/20/2025   16:09:56   ( -69.70, 114.50) 02/20/2025   16:08:44  ( -69.76, 113.80)   28.09                72
 02/23/2025   06:45:32   ( -70.18,-105.09) 02/23/2025   06:46:11  ( -70.17,-105.02)    2.80                39
 02/23/2025   07:36:16   (  70.04,  62.43) 02/23/2025   07:35:38  (  70.05,  62.46)    1.97                38
 02/25/2025   22:11:53   (  70.59,-157.29) 02/25/2025   22:13:04  (  70.48,-156.32)   38.36                71
 02/25/2025   23:02:27   ( -70.10,  10.80) 02/25/2025   23:02:39  ( -70.10,  10.76)    1.39                12
 02/25/2025   23:53:11   (  69.96, 178.31) 02/25/2025   23:52:06  (  69.98, 178.25)    3.31                65
 02/28/2025   14:28:40   (  70.16, -40.85) 02/28/2025   14:29:35  (  70.14, -40.91)    3.02                55
 02/28/2025   15:19:22   ( -70.08, 126.59) 02/28/2025   15:19:04  ( -70.09, 126.65)    2.89                18
 02/28/2025   16:09:52   (  69.20, -64.82) 02/28/2025   16:08:44  (  69.26, -66.84)   79.88                68