Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 11 14.  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)
 11/16/2025   23:01:59   (  70.12,-169.20) 11/16/2025   23:02:51  (  70.13,-169.14)    2.31                52
 11/16/2025   23:52:40   ( -69.98,  -1.67) 11/16/2025   23:52:22  ( -69.96,  -1.74)    3.65                18
 11/17/2025   00:43:09   (  69.06, 166.98) 11/17/2025   00:42:02  (  69.14, 164.79)   87.50                67
 11/19/2025   14:28:31   ( -71.04, 137.76) 11/19/2025   14:29:37  ( -70.98, 140.38)   95.15                66
 11/19/2025   15:18:58   (  70.03, -53.31) 11/19/2025   15:19:19  (  70.06, -53.35)    2.98                21
 11/19/2025   16:09:40   ( -69.94, 114.15) 11/19/2025   16:08:49  ( -69.95, 114.13)    0.98                51
 11/22/2025   06:45:14   ( -70.12,-105.00) 11/22/2025   06:46:19  ( -70.10,-105.04)    3.02                65
 11/22/2025   07:35:58   (  70.01,  62.48) 11/22/2025   07:35:46  (  69.99,  62.44)    2.95                12
 11/22/2025   08:26:33   ( -69.54,-129.51) 11/22/2025   08:25:21  ( -69.61,-130.45)   37.22                72
 11/24/2025   23:02:13   ( -70.11,  10.77) 11/24/2025   23:02:43  ( -70.09,  10.85)    3.13                30
 11/24/2025   23:52:56   (  69.95, 178.33) 11/24/2025   23:52:10  (  69.98, 178.33)    3.27                46
 11/27/2025   14:28:29   (  70.11, -40.79) 11/27/2025   14:29:38  (  70.14, -40.82)    3.40                69
 11/27/2025   15:19:12   ( -70.05, 126.61) 11/27/2025   15:19:08  ( -70.04, 126.67)    2.61                 4
 11/27/2025   16:09:51   (  69.69, -65.53) 11/27/2025   16:08:39  (  69.70, -66.16)   24.22                72