Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 7 22.  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)
 07/22/2024   05:54:44   ( -70.78, -93.50) 07/22/2024   05:55:53  ( -70.66, -91.86)   61.79                69
 07/22/2024   06:45:17   (  70.10,  74.91) 07/22/2024   06:45:29  (  70.06,  74.92)    3.51                12
 07/22/2024   07:35:58   ( -69.95,-117.55) 07/22/2024   07:34:59  ( -69.95,-117.61)    2.35                59
 07/24/2024   22:11:28   ( -70.15,  23.29) 07/24/2024   22:12:30  ( -70.14,  23.27)    1.45                62
 07/24/2024   23:02:12   (  70.04,-169.24) 07/24/2024   23:01:57  (  70.03,-169.24)    0.89                15
 07/24/2024   23:52:45   ( -69.47,  -1.07) 07/24/2024   23:51:34  ( -69.54,  -2.29)   48.31                71
 07/27/2024   14:28:22   ( -70.10, 139.14) 07/27/2024   14:28:56  ( -70.11, 139.13)    1.12                34
 07/27/2024   15:19:06   (  70.00, -53.40) 07/27/2024   15:18:23  (  70.00, -53.38)    0.74                43
 07/30/2024   05:54:39   (  70.39,  87.15) 07/30/2024   05:55:50  (  70.31,  87.68)   21.89                71
 07/30/2024   06:45:17   ( -70.07,-105.04) 07/30/2024   06:45:22  ( -70.09,-105.00)    2.39                 5
 07/30/2024   07:36:01   (  69.97,  62.42) 07/30/2024   07:34:49  (  69.98,  62.48)    2.38                72
 08/01/2024   22:11:29   (  70.11,-156.64) 08/01/2024   22:12:18  (  70.12,-156.69)    1.86                49
 08/01/2024   23:02:11   ( -70.00,  10.84) 08/01/2024   23:01:48  ( -70.01,  10.79)    2.30                23
 08/04/2024   13:37:56   ( -71.04, 150.33) 08/04/2024   13:39:02  ( -70.92, 152.77)   89.60                66
 08/04/2024   14:28:24   (  70.11, -40.87) 08/04/2024   14:28:42  (  70.10, -40.81)    2.89                18
 08/04/2024   15:19:06   ( -70.00, 126.63) 08/04/2024   15:18:12  ( -69.99, 126.67)    1.90                54