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: 4/3/2025
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 04/03/2025 10:28:25 73.56, 13.05 68.27 04/03/2025 10:28:50 73.56, 13.00 68.27 1.77 25
2 04/03/2025 11:19:08 -73.48,-179.47 111.82 04/03/2025 11:18:11 -73.49,-179.47 111.80 0.86 57
3 04/05/2025 20:50:03 -73.61, 37.53 112.61 04/05/2025 20:50:51 -73.61, 37.55 112.62 0.79 48
4 04/05/2025 21:40:47 73.54,-155.01 67.31 04/05/2025 21:40:12 73.51,-154.99 67.29 3.48 35
5 04/08/2025 07:11:41 73.63, 62.07 66.50 04/08/2025 07:12:51 73.64, 62.05 66.49 1.22 70
6 04/08/2025 08:02:24 -73.55,-130.43 113.61 04/08/2025 08:02:13 -73.53,-130.50 113.62 3.19 11
7 04/10/2025 17:33:34 -74.42, 84.70 113.52 04/10/2025 17:34:39 -74.30, 87.95 113.83 98.46 65
8 04/10/2025 18:24:02 73.58,-105.92 65.53 04/10/2025 18:24:12 73.56,-105.98 65.50 3.31 10
9 04/10/2025 19:14:45 -73.50, 61.58 114.58 04/10/2025 19:13:33 -73.51, 61.58 114.56 1.11 72
10 04/13/2025 04:45:39 -73.60, -81.37 115.35 04/13/2025 04:46:11 -73.62, -81.41 115.34 2.11 32
11 04/13/2025 05:36:23 73.55, 86.07 64.58 04/13/2025 05:35:31 73.55, 86.12 64.59 1.52 52
12 04/15/2025 15:07:17 73.66, -56.92 63.84 04/15/2025 15:08:08 73.66, -56.86 63.82 1.85 51
13 04/15/2025 15:58:00 -73.58, 110.60 116.27 04/15/2025 15:57:30 -73.57, 110.62 116.27 0.82 30

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 4/3/2025
SNOs_Map_NOAA-21_TERRA_20250403.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 04/03/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA