Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 3 28.  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)
 03/29/2024   15:18:10   ( -70.00, 126.56) 03/29/2024   15:19:01  ( -70.02, 126.50)    2.84                51
 03/29/2024   16:08:54   (  69.89, -65.97) 03/29/2024   16:08:28  (  69.91, -66.00)    2.60                26
 03/29/2024   16:59:20   ( -68.95, 102.71) 03/29/2024   16:58:13  ( -68.97, 100.38)   93.11                67
 04/01/2024   06:44:38   (  70.79,  73.76) 04/01/2024   06:45:45  (  70.69,  75.74)   73.70                67
 04/01/2024   07:35:06   ( -69.96,-117.60) 04/01/2024   07:35:26  ( -69.97,-117.67)    3.15                20
 04/01/2024   08:25:50   (  69.85,  49.87) 04/01/2024   08:24:53  (  69.86,  49.82)    2.18                57
 04/03/2024   23:01:20   (  70.03,-169.26) 04/03/2024   23:02:20  (  70.04,-169.31)    2.23                60
 04/03/2024   23:52:02   ( -69.92,  -1.78) 04/03/2024   23:51:50  ( -69.93,  -1.83)    1.92                12
 04/04/2024   00:42:35   (  69.24, 166.53) 04/04/2024   00:41:26  (  69.31, 164.98)   61.54                69
 04/06/2024   15:18:16   (  70.01, -53.47) 04/06/2024   15:18:43  (  69.99, -53.47)    2.62                27
 04/06/2024   16:08:58   ( -69.91, 114.01) 04/06/2024   16:08:13  ( -69.89, 114.01)    2.33                45
 04/09/2024   06:44:26   ( -70.06,-105.07) 04/09/2024   06:45:37  ( -70.07,-105.10)    1.98                71
 04/09/2024   07:35:10   (  69.96,  62.39) 04/09/2024   07:35:04  (  69.95,  62.38)    1.45                 6
 04/09/2024   08:25:49   ( -69.69,-129.90) 04/09/2024   08:24:36  ( -69.74,-130.29)   15.84                73