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: 7/26/2025
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 07/26/2025 20:50:52 -74.06, 36.22 124.81 07/26/2025 20:51:13 -74.09, 36.21 124.80 2.82 21
2 07/26/2025 21:41:36 73.98,-156.28 55.11 07/26/2025 21:40:34 73.98,-156.35 55.13 2.33 62
3 07/29/2025 07:12:34 74.09, 60.74 55.78 07/29/2025 07:12:54 74.06, 60.69 55.75 3.40 20
4 07/29/2025 08:03:17 -74.01,-131.77 124.30 07/29/2025 08:02:14 -74.03,-131.70 124.26 3.15 63
5 07/31/2025 17:34:15 -74.11, 85.25 123.60 07/31/2025 17:34:34 -74.10, 85.32 123.62 2.07 19
6 07/31/2025 18:24:59 74.05,-107.27 56.34 07/31/2025 18:23:54 74.04,-107.16 56.34 3.53 65
7 08/03/2025 03:55:56 74.10, 109.85 57.01 08/03/2025 03:56:14 74.08, 109.81 56.99 2.62 18
8 08/03/2025 04:46:39 -74.02, -82.63 123.08 08/03/2025 04:45:35 -74.02, -82.67 123.06 1.14 64
9 08/05/2025 14:17:37 -74.13, 134.38 122.32 08/05/2025 14:17:54 -74.11, 134.40 122.35 2.03 17
10 08/05/2025 15:08:20 74.02, -58.05 57.57 08/05/2025 15:07:14 74.03, -58.11 57.60 1.97 66
11 08/08/2025 00:39:17 74.13, 158.94 58.36 08/08/2025 00:39:31 74.15, 159.02 58.37 2.99 14

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 7/26/2025
SNOs_Map_NOAA-21_TERRA_20250726.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 07/26/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA