Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 1 9.  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)
 01/11/2025   14:29:06   (  70.13, -40.83) 01/11/2025   14:29:39  (  70.15, -40.87)    2.51                33
 01/11/2025   15:19:48   ( -70.05, 126.62) 01/11/2025   15:19:09  ( -70.04, 126.61)    0.39                39
 01/14/2025   05:55:23   ( -70.89, -93.56) 01/14/2025   05:56:31  ( -70.77, -91.71)   68.93                68
 01/14/2025   06:45:54   (  70.10,  75.01) 01/14/2025   06:46:08  (  70.12,  74.97)    2.41                14
 01/14/2025   07:36:36   ( -70.02,-117.54) 01/14/2025   07:35:38  ( -70.01,-117.55)    0.44                58
 01/16/2025   22:11:57   ( -70.19,  23.35) 01/16/2025   22:13:08  ( -70.21,  23.35)    2.33                71
 01/16/2025   23:02:41   (  70.08,-169.17) 01/16/2025   23:02:35  (  70.10,-169.17)    1.99                 6
 01/16/2025   23:53:20   ( -69.84,  -1.48) 01/16/2025   23:52:07  ( -69.89,  -1.84)   14.65                73
 01/19/2025   14:28:45   ( -70.19, 139.16) 01/19/2025   14:29:36  ( -70.16, 139.16)    2.93                51
 01/19/2025   15:19:29   (  70.07, -53.36) 01/19/2025   15:19:03  (  70.04, -53.37)    3.57                26
 01/19/2025   16:09:54   ( -69.09, 115.39) 01/19/2025   16:08:47  ( -69.17, 113.08)   91.75                67
 01/22/2025   06:45:32   ( -70.14,-104.97) 01/22/2025   06:46:03  ( -70.12,-105.01)    2.50                31
 01/22/2025   07:36:16   (  70.03,  62.51) 01/22/2025   07:35:30  (  70.00,  62.47)    3.29                46