Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 5 16.  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)
 05/16/2024   15:18:01   ( -70.08, 126.57) 05/16/2024   15:18:29  ( -70.10, 126.62)    2.55                28
 05/16/2024   16:08:45   (  69.96, -65.94) 05/16/2024   16:07:57  (  69.94, -65.96)    3.06                48
 05/19/2024   06:44:12   (  70.24,  74.80) 05/19/2024   06:45:23  (  70.21,  75.03)    9.86                71
 05/19/2024   07:34:52   ( -70.05,-117.59) 05/19/2024   07:34:54  ( -70.04,-117.57)    2.19                 2
 05/19/2024   08:25:35   (  69.88,  49.97) 05/19/2024   08:24:22  (  69.87,  49.84)    5.15                73
 05/21/2024   23:01:01   (  70.13,-169.23) 05/21/2024   23:01:47  (  70.13,-169.17)    2.21                46
 05/21/2024   23:51:42   ( -69.99,  -1.70) 05/21/2024   23:51:17  ( -70.02,  -1.70)    3.09                25
 05/24/2024   14:27:23   ( -71.03, 137.79) 05/24/2024   14:28:29  ( -70.92, 140.26)   90.51                66
 05/24/2024   15:17:51   (  70.08, -53.37) 05/24/2024   15:18:09  (  70.10, -53.31)    2.65                18
 05/24/2024   16:08:32   ( -69.95, 114.16) 05/24/2024   16:07:40  ( -69.93, 114.09)    3.03                52
 05/27/2024   06:43:56   ( -70.17,-105.01) 05/27/2024   06:45:02  ( -70.18,-104.94)    2.89                66
 05/27/2024   07:34:40   (  70.06,  62.46) 05/27/2024   07:34:29  (  70.06,  62.54)    2.75                11
 05/27/2024   08:25:16   ( -69.66,-129.61) 05/27/2024   08:24:04  ( -69.67,-130.36)   29.05                72
 05/29/2024   23:00:45   ( -70.11,  10.88) 05/29/2024   23:01:22  ( -70.13,  10.90)    1.85                37
 05/29/2024   23:51:29   (  70.00, 178.35) 05/29/2024   23:50:49  (  70.00, 178.38)    0.92                40