Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2023 2 23.  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)
 02/24/2023   22:36:34   (  70.55,-163.54) 02/24/2023   22:37:44  (  70.46,-162.53)   38.81                70
 02/24/2023   23:27:08   ( -70.04,   4.58) 02/24/2023   23:27:19  ( -70.06,   4.53)    2.96                11
 02/25/2023   00:17:53   (  69.98, 171.98) 02/25/2023   00:16:46  (  69.96, 172.03)    2.69                67
 02/27/2023   14:53:21   (  70.12, -47.10) 02/27/2023   14:54:14  (  70.14, -47.10)    2.41                53
 02/27/2023   15:44:03   ( -70.03, 120.36) 02/27/2023   15:43:44  ( -70.03, 120.37)    0.52                19
 02/27/2023   16:34:32   (  69.12, -71.01) 02/27/2023   16:33:25  (  69.15, -73.17)   85.73                67
 03/02/2023   07:10:14   (  70.07,  68.75) 03/02/2023   07:10:38  (  70.07,  68.70)    1.82                24
 03/02/2023   08:00:56   ( -69.97,-123.79) 03/02/2023   08:00:08  ( -69.96,-123.83)    2.18                48
 03/04/2023   22:36:24   ( -70.13,  17.11) 03/04/2023   22:37:35  ( -70.14,  17.05)    2.51                71
 03/04/2023   23:27:08   (  70.03,-175.42) 03/04/2023   23:27:02  (  70.03,-175.46)    1.62                 6
 03/05/2023   00:17:47   ( -69.77,  -7.72) 03/05/2023   00:16:34  ( -69.81,  -8.14)   16.77                73
 03/07/2023   14:53:18   ( -70.09, 132.93) 03/07/2023   14:53:58  ( -70.13, 132.93)    3.52                40
 03/07/2023   15:44:02   (  69.99, -59.60) 03/07/2023   15:43:25  (  70.01, -59.58)    2.55                37