Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/29/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 07/29/2025 07:12:34 74.08, 60.75 55.77 07/29/2025 07:12:54 74.06, 60.69 55.75 2.95 20
2 07/29/2025 08:03:17 -74.01,-131.76 124.30 07/29/2025 08:02:14 -74.03,-131.71 124.27 2.88 63
3 07/31/2025 17:34:15 -74.11, 85.26 123.61 07/31/2025 17:34:34 -74.10, 85.30 123.63 1.75 19
4 07/31/2025 18:24:59 74.04,-107.26 56.33 07/31/2025 18:23:54 74.03,-107.17 56.33 2.83 65
5 08/03/2025 03:55:56 74.10, 109.86 57.01 08/03/2025 03:56:13 74.13, 109.91 57.03 3.43 17
6 08/03/2025 04:46:39 -74.02, -82.62 123.08 08/03/2025 04:45:35 -74.01, -82.69 123.07 2.50 64
7 08/05/2025 14:17:36 -74.13, 134.38 122.32 08/05/2025 14:17:52 -74.14, 134.48 122.32 3.64 16
8 08/05/2025 15:08:19 74.02, -58.04 57.57 08/05/2025 15:07:13 74.01, -58.14 57.59 3.00 66
9 08/08/2025 00:39:17 74.13, 158.94 58.36 08/08/2025 00:39:31 74.13, 158.98 58.35 1.39 14
10 08/08/2025 01:30:00 -74.04, -33.53 121.73 08/08/2025 01:28:53 -74.02, -33.59 121.73 3.18 67
11 08/10/2025 11:00:57 -74.11,-176.42 120.97 08/10/2025 11:01:11 -74.13,-176.49 120.96 2.58 14

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 7/29/2025
SNOs_Map_NOAA-21_TERRA_20250729.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 07/29/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA