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: 4/15/2025
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 04/15/2025 15:07:16 73.66, -56.91 63.84 04/15/2025 15:08:06 73.64, -56.90 63.81 1.95 50
2 04/15/2025 15:57:59 -73.58, 110.58 116.26 04/15/2025 15:57:27 -73.59, 110.66 116.25 2.68 32
3 04/18/2025 01:28:52 -73.66, -32.31 117.03 04/18/2025 01:30:03 -73.69, -32.33 117.01 3.41 71
4 04/18/2025 02:19:36 73.60, 135.14 62.90 04/18/2025 02:19:23 73.62, 135.19 62.92 2.69 13
5 04/20/2025 11:50:42 74.33, -9.36 62.88 04/20/2025 11:51:48 74.25, -6.65 62.64 81.97 66
6 04/20/2025 12:41:12 -73.61, 159.72 117.94 04/20/2025 12:41:20 -73.63, 159.68 117.92 2.91 8
7 04/20/2025 13:31:54 73.45, -32.60 61.88 04/20/2025 13:30:41 73.50, -32.92 61.95 11.48 73
8 04/22/2025 23:02:49 73.65,-175.77 61.28 04/22/2025 23:03:14 73.66,-175.78 61.29 1.77 25
9 04/22/2025 23:53:32 -73.57, -8.27 118.82 04/22/2025 23:52:36 -73.58, -8.28 118.80 1.79 56
10 04/25/2025 09:24:25 -73.67,-151.23 119.50 04/25/2025 09:25:10 -73.66,-151.32 119.52 3.19 45
11 04/25/2025 10:15:09 73.61, 16.22 60.43 04/25/2025 10:14:29 73.61, 16.26 60.43 1.29 40
12 04/27/2025 19:46:01 73.73,-126.76 59.79 04/27/2025 19:47:00 73.74,-126.66 59.78 3.32 59
13 04/27/2025 20:36:44 -73.65, 40.74 120.32 04/27/2025 20:36:23 -73.62, 40.76 120.34 2.83 21

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 4/15/2025
SNOs_Map_NOAA-21_TERRA_20250415.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 04/15/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA