Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2025 1 21.  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)
 01/22/2025   06:45:32   ( -70.18,-105.03) 01/22/2025   06:46:14  ( -70.16,-105.02)    2.83                42
 01/22/2025   07:36:16   (  70.06,  62.46) 01/22/2025   07:35:41  (  70.05,  62.48)    0.75                35
 01/24/2025   22:11:53   (  71.07,-157.99) 01/24/2025   22:12:59  (  70.96,-155.57)   88.30                66
 01/24/2025   23:02:19   ( -70.16,  10.80) 01/24/2025   23:02:42  ( -70.13,  10.84)    2.71                23
 01/24/2025   23:53:03   (  70.03, 178.30) 01/24/2025   23:52:09  (  70.03, 178.33)    1.21                54
 01/27/2025   14:28:26   (  70.32, -40.97) 01/27/2025   14:29:38  (  70.28, -40.70)   11.48                72
 01/27/2025   15:19:05   ( -70.09, 126.70) 01/27/2025   15:19:09  ( -70.11, 126.70)    2.03                 4
 01/27/2025   16:09:49   (  69.97, -65.81) 01/27/2025   16:08:36  (  70.00, -65.82)    3.50                73
 01/30/2025   06:45:09   (  70.17,  75.06) 01/30/2025   06:46:04  (  70.20,  75.08)    2.76                55
 01/30/2025   07:35:51   ( -70.10,-117.51) 01/30/2025   07:35:34  ( -70.09,-117.44)    2.99                17
 01/30/2025   08:26:21   (  69.23,  51.07) 01/30/2025   08:25:13  (  69.31,  49.14)   76.38                68
 02/01/2025   23:01:55   (  70.14,-169.09) 02/01/2025   23:02:29  (  70.17,-169.06)    3.34                34
 02/01/2025   23:52:36   ( -70.02,  -1.59) 02/01/2025   23:52:00  ( -70.01,  -1.65)    2.77                36