Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 8 23.  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)
 08/23/2024   05:54:59   ( -71.02, -93.86) 08/23/2024   05:56:06  ( -70.92, -91.47)   87.45                67
 08/23/2024   06:45:27   (  70.08,  74.97) 08/23/2024   06:45:46  (  70.11,  74.97)    3.30                19
 08/23/2024   07:36:09   ( -69.98,-117.57) 08/23/2024   07:35:16  ( -70.00,-117.56)    1.72                53
 08/25/2024   22:11:38   ( -70.25,  23.18) 08/25/2024   22:12:49  ( -70.23,  23.38)    8.01                71
 08/25/2024   23:02:20   (  70.05,-169.19) 08/25/2024   23:02:17  (  70.08,-169.20)    3.32                 3
 08/25/2024   23:53:01   ( -69.89,  -1.64) 08/25/2024   23:51:48  ( -69.91,  -1.80)    6.26                73
 08/28/2024   14:28:29   ( -70.13, 139.16) 08/28/2024   14:29:20  ( -70.14, 139.13)    1.65                51
 08/28/2024   15:19:13   (  70.03, -53.38) 08/28/2024   15:18:47  (  70.03, -53.38)    0.50                26
 08/28/2024   16:09:39   ( -69.08, 115.32) 08/28/2024   16:08:32  ( -69.10, 112.99)   92.54                67
 08/31/2024   06:45:22   ( -70.12,-105.05) 08/31/2024   06:45:48  ( -70.15,-104.97)    3.70                26
 08/31/2024   07:36:05   (  69.97,  62.49) 08/31/2024   07:35:16  (  69.98,  62.44)    2.25                49
 09/02/2024   22:11:33   (  70.30,-156.84) 09/02/2024   22:12:44  (  70.25,-156.56)   11.74                71
 09/02/2024   23:02:13   ( -70.09,  10.80) 09/02/2024   23:02:15  ( -70.09,  10.84)    1.56                 2
 09/02/2024   23:52:56   (  69.93, 178.34) 09/02/2024   23:51:43  (  69.92, 178.25)    3.97                73
 09/05/2024   14:28:22   (  70.12, -40.78) 09/05/2024   14:29:12  (  70.13, -40.84)    2.71                50
 09/05/2024   15:19:04   ( -70.01, 126.70) 09/05/2024   15:18:42  ( -70.02, 126.64)    2.54                22