Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 8 19.  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)
 08/20/2024   14:28:34   (  70.10, -40.85) 08/20/2024   14:29:15  (  70.12, -40.89)    2.66                41
 08/20/2024   15:19:16   ( -70.00, 126.62) 08/20/2024   15:18:45  ( -70.01, 126.59)    1.81                31
 08/23/2024   05:55:00   ( -71.04, -93.89) 08/23/2024   05:56:06  ( -70.97, -91.40)   90.54                66
 08/23/2024   06:45:28   (  70.10,  74.93) 08/23/2024   06:45:47  (  70.10,  74.95)    0.88                19
 08/23/2024   07:36:10   ( -70.00,-117.59) 08/23/2024   07:35:17  ( -69.99,-117.57)    1.34                53
 08/25/2024   22:11:38   ( -70.27,  23.15) 08/25/2024   22:12:49  ( -70.22,  23.37)    9.92                71
 08/25/2024   23:02:20   (  70.07,-169.23) 08/25/2024   23:02:17  (  70.06,-169.22)    1.09                 3
 08/25/2024   23:53:01   ( -69.91,  -1.67) 08/25/2024   23:51:47  ( -69.96,  -1.74)    5.38                74
 08/28/2024   14:28:29   ( -70.15, 139.12) 08/28/2024   14:29:20  ( -70.12, 139.10)    3.41                51
 08/28/2024   15:19:12   (  70.00, -53.34) 08/28/2024   15:18:47  (  70.01, -53.41)    2.59                25
 08/28/2024   16:09:38   ( -69.05, 115.36) 08/28/2024   16:08:31  ( -69.14, 113.04)   92.56                67
 08/31/2024   06:45:21   ( -70.10,-105.02) 08/31/2024   06:45:48  ( -70.12,-105.01)    1.35                27
 08/31/2024   07:36:05   (  70.01,  62.44) 08/31/2024   07:35:15  (  70.00,  62.47)    1.59                50