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)   35.89                70
 06/14/2024   23:01:37   ( -70.11,  10.70) 06/14/2024   23:01:46  ( -70.11,  10.74)    1.61                 9
 06/14/2024   23:52:21   (  69.97, 178.22) 06/14/2024   23:51:14  (  69.95, 178.17)    2.87                67
 06/17/2024   14:27:53   (  70.15, -40.91) 06/17/2024   14:28:43  (  70.15, -40.95)    1.62                50
 06/17/2024   15:18:35   ( -70.07, 126.53) 06/17/2024   15:18:12  ( -70.08, 126.59)    3.01                23
 06/20/2024   05:54:21   ( -71.03, -93.88) 06/20/2024   05:55:28  ( -70.90, -91.58)   84.42                67
 06/20/2024   06:44:50   (  70.12,  74.90) 06/20/2024   06:45:08  (  70.09,  74.86)    3.41                18
 06/20/2024   07:35:32   ( -70.03,-117.66) 06/20/2024   07:34:37  ( -70.03,-117.60)    2.37                55
 06/22/2024   22:11:03   ( -70.17,  23.28) 06/22/2024   22:12:06  ( -70.16,  23.21)    2.74                63
 06/22/2024   23:01:48   (  70.09,-169.30) 06/22/2024   23:01:32  (  70.11,-169.22)    3.40                16
 06/22/2024   23:52:20   ( -69.48,  -1.07) 06/22/2024   23:51:10  ( -69.56,  -2.35)   50.66                70
 06/25/2024   14:28:01   ( -70.15, 139.07) 06/25/2024   14:28:30  ( -70.16, 139.09)    1.02                29
 06/25/2024   15:18:45   (  70.03, -53.44) 06/25/2024   15:17:57  (  70.04, -53.42)    1.69                48