Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9 TLE Epoch: 2025 7 16. 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) 07/17/2025 05:55:09 ( 70.26, 87.29) 07/17/2025 05:56:21 ( 70.21, 87.50) 9.64 72 07/17/2025 06:45:49 ( -70.06,-105.09) 07/17/2025 06:45:52 ( -70.04,-105.11) 2.16 3 07/17/2025 07:36:32 ( 69.89, 62.47) 07/17/2025 07:35:19 ( 69.94, 62.39) 5.99 73 07/19/2025 22:12:03 ( 70.16,-156.79) 07/19/2025 22:12:53 ( 70.14,-156.73) 3.11 50 07/19/2025 23:02:44 ( -70.00, 10.76) 07/19/2025 23:02:23 ( -70.03, 10.76) 3.07 21 07/19/2025 23:53:12 ( 69.04, 179.46) 07/19/2025 23:52:05 ( 69.09, 177.13) 92.65 67 07/22/2025 14:28:58 ( 70.11, -40.95) 07/22/2025 14:29:24 ( 70.11, -40.89) 2.37 26 07/22/2025 15:19:40 ( -70.00, 126.53) 07/22/2025 15:18:54 ( -70.01, 126.60) 2.85 46 07/25/2025 05:55:14 ( -70.42, -92.98) 07/25/2025 05:56:25 ( -70.35, -92.31) 26.51 71 07/25/2025 06:45:53 ( 70.07, 74.88) 07/25/2025 06:45:55 ( 70.07, 74.94) 1.97 2 07/25/2025 07:36:35 ( -69.96,-117.63) 07/25/2025 07:35:25 ( -69.97,-117.57) 2.84 70 07/27/2025 22:12:03 ( -70.12, 23.27) 07/27/2025 22:12:58 ( -70.13, 23.26) 1.89 55 07/27/2025 23:02:47 ( 70.03,-169.29) 07/27/2025 23:02:25 ( 70.01,-169.26) 1.93 22