Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 3 12.  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)
 03/13/2025   22:11:49   (  70.43,-157.06) 03/13/2025   22:13:01  (  70.32,-156.56)   22.24                72
 03/13/2025   23:02:26   ( -70.08,  10.80) 03/13/2025   23:02:33  ( -70.10,  10.75)    2.60                 7
 03/13/2025   23:53:11   (  70.01, 178.21) 03/13/2025   23:52:00  (  69.99, 178.25)    2.78                71
 03/16/2025   14:28:39   (  70.19, -40.92) 03/16/2025   14:29:30  (  70.18, -40.88)    2.10                51
 03/16/2025   15:19:20   ( -70.05, 126.62) 03/16/2025   15:19:00  ( -70.07, 126.60)    2.51                20
 03/16/2025   16:09:48   (  69.08, -64.67) 03/16/2025   16:08:42  (  69.13, -67.03)   93.65                66
 03/19/2025   06:45:32   (  70.12,  74.96) 03/19/2025   06:45:57  (  70.10,  74.90)    3.11                25
 03/19/2025   07:36:14   ( -70.02,-117.57) 03/19/2025   07:35:26  ( -70.05,-117.54)    3.01                48
 03/21/2025   22:11:43   ( -70.27,  23.20) 03/21/2025   22:12:54  ( -70.26,  23.38)    6.93                71
 03/21/2025   23:02:25   (  70.07,-169.18) 03/21/2025   23:02:22  (  70.09,-169.22)    3.07                 3
 03/21/2025   23:53:06   ( -69.91,  -1.62) 03/21/2025   23:51:53  ( -69.93,  -1.81)    7.57                73
 03/24/2025   14:28:34   ( -70.16, 139.13) 03/24/2025   14:29:19  ( -70.15, 139.12)    1.10                45
 03/24/2025   15:19:17   (  70.02, -53.34) 03/24/2025   15:18:46  (  70.04, -53.40)    2.77                31