Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 5 24.  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)
 05/26/2025   06:19:59   ( -70.15, -98.75) 05/26/2025   06:20:47  ( -70.15, -98.79)    1.52                48
 05/26/2025   07:10:44   (  70.06,  68.69) 05/26/2025   07:10:14  (  70.05,  68.71)    1.77                30
 05/28/2025   21:46:29   (  70.97,-151.63) 05/28/2025   21:47:36  (  70.83,-149.52)   78.39                67
 05/28/2025   22:36:56   ( -70.11,  17.06) 05/28/2025   22:37:17  ( -70.12,  17.05)    0.99                21
 05/28/2025   23:27:41   (  70.03,-175.50) 05/28/2025   23:26:44  (  70.02,-175.45)    2.20                57
 05/31/2025   14:03:12   (  70.20, -34.64) 05/31/2025   14:04:17  (  70.18, -34.60)    2.64                65
 05/31/2025   14:53:53   ( -70.08, 132.87) 05/31/2025   14:53:47  ( -70.08, 132.88)    0.56                 6
 05/31/2025   15:44:31   (  69.62, -59.14) 05/31/2025   15:43:20  (  69.64, -60.09)   36.83                71
 06/03/2025   06:20:07   (  70.13,  81.24) 06/03/2025   06:20:46  (  70.12,  81.19)    2.15                39
 06/03/2025   07:10:48   ( -70.00,-111.25) 06/03/2025   07:10:16  ( -70.02,-111.33)    3.37                32
 06/05/2025   21:46:30   ( -70.76,  28.69) 06/05/2025   21:47:39  ( -70.70,  30.28)   59.10                69
 06/05/2025   22:37:04   (  70.10,-162.96) 06/05/2025   22:37:15  (  70.09,-162.96)    0.90                11
 06/05/2025   23:27:45   ( -69.98,   4.55) 06/05/2025   23:26:45  ( -69.99,   4.53)    1.81                60