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: 4/7/2025
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 04/08/2025 07:11:41 73.66, 62.00 66.53 04/08/2025 07:12:50 73.65, 62.07 66.50 2.32 69
2 04/08/2025 08:02:23 -73.53,-130.39 113.63 04/08/2025 08:02:12 -73.53,-130.50 113.62 3.37 11
3 04/10/2025 17:33:33 -74.41, 84.73 113.53 04/10/2025 17:34:38 -74.28, 87.91 113.85 96.48 65
4 04/10/2025 18:24:02 73.62,-106.00 65.56 04/10/2025 18:24:10 73.60,-105.90 65.54 3.52 8
5 04/10/2025 19:14:44 -73.49, 61.61 114.59 04/10/2025 19:13:32 -73.49, 61.54 114.57 2.28 72
6 04/13/2025 04:45:38 -73.60, -81.35 115.36 04/13/2025 04:46:09 -73.62, -81.40 115.34 3.03 31
7 04/13/2025 05:36:22 73.54, 86.09 64.57 04/13/2025 05:35:29 73.55, 86.13 64.60 2.22 53
8 04/15/2025 15:07:16 73.66, -56.91 63.84 04/15/2025 15:08:06 73.63, -56.92 63.80 3.46 50
9 04/15/2025 15:57:59 -73.58, 110.60 116.27 04/15/2025 15:57:27 -73.59, 110.66 116.26 2.37 32
10 04/18/2025 01:28:52 -73.66, -32.30 117.03 04/18/2025 01:30:03 -73.68, -32.35 117.03 2.65 71
11 04/18/2025 02:19:36 73.61, 135.13 62.90 04/18/2025 02:19:23 73.60, 135.15 62.89 1.29 13
12 04/20/2025 11:50:42 74.34, -9.38 62.89 04/20/2025 11:51:48 74.21, -6.73 62.61 81.38 66
13 04/20/2025 12:41:12 -73.61, 159.71 117.94 04/20/2025 12:41:20 -73.60, 159.63 117.95 2.80 8

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 4/7/2025
SNOs_Map_NOAA-21_TERRA_20250407.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 04/07/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA