Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 8 10.  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)
 08/12/2024   14:28:35   ( -70.13, 139.09) 08/12/2024   14:29:09  ( -70.14, 139.15)    2.78                34
 08/12/2024   15:19:18   (  69.97, -53.36) 08/12/2024   15:18:37  (  69.98, -53.43)    2.89                41
 08/15/2024   05:54:55   (  70.57,  86.86) 08/15/2024   05:56:06  (  70.45,  87.84)   38.79                71
 08/15/2024   06:45:30   ( -70.09,-105.08) 08/15/2024   06:45:41  ( -70.07,-105.08)    2.66                11
 08/15/2024   07:36:13   (  69.94,  62.46) 08/15/2024   07:35:08  (  69.96,  62.41)    2.92                65
 08/17/2024   22:11:41   (  70.13,-156.68) 08/17/2024   22:12:40  (  70.14,-156.73)    2.19                59
 08/17/2024   23:02:23   ( -70.02,  10.81) 08/17/2024   23:02:10  ( -70.03,  10.76)    2.53                13
 08/17/2024   23:52:56   (  69.34, 179.12) 08/17/2024   23:51:47  (  69.37, 177.49)   64.02                69
 08/20/2024   14:28:36   (  70.13, -40.90) 08/20/2024   14:29:08  (  70.15, -40.83)    3.17                32
 08/20/2024   15:19:18   ( -70.02, 126.59) 08/20/2024   15:18:39  ( -69.99, 126.58)    3.41                39
 08/23/2024   05:54:54   ( -70.61, -93.18) 08/23/2024   05:56:04  ( -70.48, -92.10)   42.69                70
 08/23/2024   06:45:30   (  70.10,  74.93) 08/23/2024   06:45:36  (  70.09,  74.98)    2.16                 6
 08/23/2024   07:36:12   ( -69.98,-117.58) 08/23/2024   07:35:06  ( -69.99,-117.53)    1.81                66