Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9 TLE Epoch: 2025 7 3. 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) 07/03/2025 22:11:58 ( 70.14,-156.73) 07/03/2025 22:12:47 ( 70.14,-156.73) 0.19 49 07/03/2025 23:02:39 ( -70.01, 10.77) 07/03/2025 23:02:17 ( -70.02, 10.74) 1.46 22 07/06/2025 14:28:52 ( 70.07, -40.87) 07/06/2025 14:29:16 ( 70.09, -40.91) 2.99 24 07/06/2025 15:19:34 ( -69.99, 126.57) 07/06/2025 15:18:46 ( -69.98, 126.57) 1.09 48 07/09/2025 05:55:06 ( -70.29, -92.74) 07/09/2025 05:56:17 ( -70.26, -92.43) 12.28 71 07/09/2025 06:45:48 ( 70.06, 74.91) 07/09/2025 06:45:46 ( 70.04, 74.90) 2.79 2 07/09/2025 07:36:29 ( -69.92,-117.56) 07/09/2025 07:35:16 ( -69.93,-117.62) 2.28 73 07/11/2025 22:11:59 ( -70.12, 23.29) 07/11/2025 22:12:48 ( -70.13, 23.28) 1.62 49 07/11/2025 23:02:43 ( 70.00,-169.23) 07/11/2025 23:02:15 ( 70.02,-169.24) 1.89 28 07/14/2025 13:38:28 ( 71.00, -29.68) 07/14/2025 13:39:34 ( 70.92, -27.30) 86.76 66 07/14/2025 14:28:55 ( -70.11, 139.06) 07/14/2025 14:29:17 ( -70.10, 139.12) 2.32 22 07/14/2025 15:19:39 ( 70.00, -53.46) 07/14/2025 15:18:44 ( 69.99, -53.40) 2.93 55 07/17/2025 05:55:07 ( 70.16, 87.44) 07/17/2025 05:56:15 ( 70.16, 87.46) 0.62 68 07/17/2025 06:45:49 ( -70.05,-105.08) 07/17/2025 06:45:45 ( -70.06,-105.05) 1.51 4 07/17/2025 07:36:28 ( 69.69, 62.78) 07/17/2025 07:35:16 ( 69.72, 62.12) 25.59 72