Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 6 13.  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)
 06/14/2024   22:11:02   (  70.55,-157.31) 06/14/2024   22:12:12  (  70.45,-156.40)   35.79                70
 06/14/2024   23:01:37   ( -70.11,  10.70) 06/14/2024   23:01:46  ( -70.11,  10.74)    1.51                 9
 06/14/2024   23:52:21   (  69.97, 178.22) 06/14/2024   23:51:14  (  69.95, 178.17)    2.81                67
 06/17/2024   14:27:53   (  70.15, -40.91) 06/17/2024   14:28:43  (  70.14, -40.96)    1.96                50
 06/17/2024   15:18:35   ( -70.07, 126.53) 06/17/2024   15:18:12  ( -70.08, 126.59)    2.50                23
 06/20/2024   05:54:21   ( -71.03, -93.88) 06/20/2024   05:55:28  ( -70.89, -91.60)   84.02                67
 06/20/2024   06:44:50   (  70.12,  74.90) 06/20/2024   06:45:07  (  70.13,  74.91)    1.38                17
 06/20/2024   07:35:32   ( -70.04,-117.66) 06/20/2024   07:34:37  ( -70.01,-117.62)    2.86                55
 06/22/2024   22:11:03   ( -70.17,  23.28) 06/22/2024   22:12:05  ( -70.19,  23.25)    2.53                62
 06/22/2024   23:01:48   (  70.10,-169.31) 06/22/2024   23:01:32  (  70.08,-169.26)    2.61                16
 06/22/2024   23:52:20   ( -69.48,  -1.07) 06/22/2024   23:51:10  ( -69.53,  -2.39)   51.46                70
 06/25/2024   14:28:01   ( -70.16, 139.06) 06/25/2024   14:28:29  ( -70.17, 139.11)    2.08                28
 06/25/2024   15:18:45   (  70.04, -53.45) 06/25/2024   15:17:56  (  70.05, -53.41)    2.40                49