Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 1 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)
 01/22/2024   23:51:29   (  69.96, 178.23) 01/22/2024   23:52:13  (  69.96, 178.25)    1.18                44
 01/23/2024   00:42:10   ( -69.83, -14.26) 01/23/2024   00:41:43  ( -69.85, -14.28)    2.47                27
 01/25/2024   15:17:53   ( -70.88, 125.23) 01/25/2024   15:18:59  ( -70.80, 127.72)   91.46                66
 01/25/2024   16:08:21   (  69.92, -65.94) 01/25/2024   16:08:40  (  69.93, -65.91)    1.53                19
 01/25/2024   16:59:01   ( -69.79, 101.58) 01/25/2024   16:58:09  ( -69.82, 101.57)    3.02                52
 01/28/2024   07:34:27   ( -69.97,-117.53) 01/28/2024   07:35:39  ( -69.97,-117.60)    2.76                72
 01/28/2024   08:25:11   (  69.85,  49.96) 01/28/2024   08:25:06  (  69.86,  49.89)    3.01                 5
 01/28/2024   09:15:50   ( -69.61,-142.37) 01/28/2024   09:14:37  ( -69.70,-142.71)   16.26                73
 01/30/2024   23:51:19   ( -69.96,  -1.73) 01/30/2024   23:52:04  ( -69.98,  -1.70)    2.64                45
 01/31/2024   00:42:03   (  69.84, 165.76) 01/31/2024   00:41:31  (  69.87, 165.79)    3.14                32
 02/02/2024   15:17:41   (  70.67, -54.38) 02/02/2024   15:18:49  (  70.60, -52.53)   68.91                68
 02/02/2024   16:08:10   ( -69.90, 114.14) 02/02/2024   16:08:30  ( -69.89, 114.08)    2.75                20
 02/02/2024   16:58:54   (  69.79, -78.38) 02/02/2024   16:57:57  (  69.78, -78.44)    2.59                57