Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 7 30.  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)
 07/30/2024   05:54:47   (  70.56,  86.86) 07/30/2024   05:55:57  (  70.43,  87.82)   38.54                70
 07/30/2024   06:45:22   ( -70.09,-105.09) 07/30/2024   06:45:31  ( -70.10,-105.03)    2.43                 9
 07/30/2024   07:36:05   (  69.93,  62.46) 07/30/2024   07:34:59  (  69.94,  62.39)    3.06                66
 08/01/2024   22:11:36   (  70.14,-156.71) 08/01/2024   22:12:33  (  70.13,-156.74)    1.28                57
 08/01/2024   23:02:18   ( -70.03,  10.77) 08/01/2024   23:02:03  ( -70.02,  10.74)    1.47                15
 08/01/2024   23:52:49   (  69.24, 179.25) 08/01/2024   23:51:41  (  69.31, 177.41)   72.67                68
 08/04/2024   14:28:32   (  70.09, -40.87) 08/04/2024   14:29:03  (  70.12, -40.87)    3.38                31
 08/04/2024   15:19:14   ( -69.99, 126.61) 08/04/2024   15:18:33  ( -70.02, 126.62)    3.64                41
 08/07/2024   05:54:51   ( -70.52, -93.08) 08/07/2024   05:56:02  ( -70.40, -92.22)   34.56                71
 08/07/2024   06:45:28   (  70.06,  74.96) 08/07/2024   06:45:33  (  70.07,  74.95)    1.67                 5
 08/07/2024   07:36:10   ( -69.95,-117.56) 08/07/2024   07:35:03  ( -69.97,-117.56)    2.65                67
 08/09/2024   22:11:39   ( -70.13,  23.31) 08/09/2024   22:12:34  ( -70.15,  23.31)    3.06                55
 08/09/2024   23:02:23   (  70.04,-169.24) 08/09/2024   23:02:01  (  70.04,-169.21)    0.91                22
 08/09/2024   23:52:51   ( -69.18,  -0.67) 08/09/2024   23:51:43  ( -69.28,  -2.62)   77.76                68
 08/12/2024   14:28:35   ( -70.11, 139.11) 08/12/2024   14:29:03  ( -70.08, 139.10)    3.18                28
 08/12/2024   15:19:18   (  69.97, -53.36) 08/12/2024   15:18:30  (  69.96, -53.43)    2.58                48