Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 1 22.  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)
 01/23/2025   14:03:27   (  70.96, -35.71) 01/23/2025   14:04:34  (  70.86, -33.66)   75.55                67
 01/23/2025   14:53:55   ( -70.16, 132.90) 01/23/2025   14:54:15  ( -70.14, 132.90)    2.68                20
 01/23/2025   15:44:39   (  70.03, -59.60) 01/23/2025   15:43:42  (  70.03, -59.60)    0.16                57
 01/26/2025   06:20:00   (  70.21,  81.30) 01/26/2025   06:21:11  (  70.20,  81.26)    1.98                71
 01/26/2025   07:10:42   ( -70.14,-111.27) 01/26/2025   07:10:40  ( -70.14,-111.20)    2.96                 2
 01/26/2025   08:01:22   (  69.80,  56.54) 01/26/2025   08:00:10  (  69.87,  56.07)   19.65                72
 01/28/2025   22:36:47   (  70.21,-162.90) 01/28/2025   22:37:35  (  70.20,-162.84)    2.23                48
 01/28/2025   23:27:28   ( -70.09,   4.61) 01/28/2025   23:27:05  ( -70.09,   4.63)    1.03                23
 01/31/2025   14:53:33   (  70.17, -47.03) 01/31/2025   14:53:59  (  70.16, -47.00)    1.83                26
 01/31/2025   15:44:14   ( -70.05, 120.47) 01/31/2025   15:43:29  ( -70.05, 120.47)    0.19                45
 02/03/2025   06:19:39   ( -70.53, -99.11) 02/03/2025   06:20:50  ( -70.45, -98.32)   30.82                71
 02/03/2025   07:10:17   (  70.09,  68.88) 02/03/2025   07:10:21  (  70.11,  68.84)    2.67                 4
 02/03/2025   08:00:59   ( -70.02,-123.69) 02/03/2025   07:59:51  ( -70.00,-123.68)    2.29                68