Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 3 25.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 03/25/2025   22:36:58   ( -70.14,  17.07) 03/25/2025   22:37:28  ( -70.14,  16.99)    2.94                30
 03/25/2025   23:27:42   (  70.04,-175.47) 03/25/2025   23:26:55  (  70.04,-175.51)    1.65                47
 03/28/2025   14:03:12   (  70.42, -34.92) 03/28/2025   14:04:23  (  70.36, -34.44)   18.98                71
 03/28/2025   14:53:51   ( -70.16, 132.82) 03/28/2025   14:53:55  ( -70.14, 132.87)    2.78                 4
 03/28/2025   15:44:34   (  70.01, -59.65) 03/28/2025   15:43:22  (  70.03, -59.64)    2.33                72
 03/31/2025   06:20:00   (  70.21,  81.20) 03/31/2025   06:20:51  (  70.23,  81.26)    3.30                51
 03/31/2025   07:10:42   ( -70.09,-111.30) 03/31/2025   07:10:22  ( -70.07,-111.34)    3.15                20
 03/31/2025   08:01:10   (  69.15,  57.37) 03/31/2025   08:00:03  (  69.18,  55.10)   90.06                67
 04/02/2025   22:36:51   (  70.17,-162.96) 04/02/2025   22:37:17  (  70.14,-162.98)    3.40                26
 04/02/2025   23:27:33   ( -70.05,   4.54) 04/02/2025   23:26:47  ( -70.03,   4.50)    2.41                46
 04/05/2025   14:03:00   ( -70.38, 145.18) 04/05/2025   14:04:11  ( -70.32, 145.53)   14.99                71
 04/05/2025   14:53:41   (  70.15, -47.14) 04/05/2025   14:53:39  (  70.14, -47.07)    2.84                 2
 04/05/2025   15:44:23   ( -70.03, 120.36) 04/05/2025   15:43:09  ( -70.04, 120.41)    2.06                74