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: 4/14/2025
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 73.64, -56.88 63.82 04/15/2025 15:08:06 73.66, -56.86 63.82 1.45 50
2 04/15/2025 15:57:59 -73.57, 110.61 116.28 04/15/2025 15:57:28 -73.55, 110.59 116.29 1.84 31
3 04/18/2025 01:28:53 -73.70, -32.40 116.99 04/18/2025 01:30:03 -73.71, -32.29 117.00 3.63 70
4 04/18/2025 02:19:36 73.59, 135.17 62.88 04/18/2025 02:19:24 73.58, 135.12 62.88 1.72 12
5 04/20/2025 11:50:43 74.36, -9.45 62.92 04/20/2025 11:51:49 74.22, -6.72 62.61 83.88 66
6 04/20/2025 12:41:13 -73.64, 159.63 117.90 04/20/2025 12:41:20 -73.66, 159.73 117.90 3.31 7
7 04/20/2025 13:31:54 73.44, -32.57 61.86 04/20/2025 13:30:41 73.52, -32.88 61.97 13.35 73
8 04/22/2025 23:02:48 73.64,-175.74 61.27 04/22/2025 23:03:14 73.64,-175.83 61.27 2.77 26
9 04/22/2025 23:53:31 -73.55, -8.24 118.84 04/22/2025 23:52:36 -73.56, -8.33 118.82 2.75 55
10 04/25/2025 09:24:25 -73.71,-151.32 119.46 04/25/2025 09:25:09 -73.69,-151.24 119.49 3.14 44
11 04/25/2025 10:15:08 73.61, 16.24 60.42 04/25/2025 10:14:29 73.59, 16.22 60.41 1.65 39
12 04/27/2025 19:46:01 73.72,-126.75 59.78 04/27/2025 19:47:01 73.73,-126.68 59.77 2.23 60
13 04/27/2025 20:36:44 -73.64, 40.75 120.33 04/27/2025 20:36:24 -73.62, 40.74 120.35 3.01 20

Figure of NOAA-21 and TERRA satellite orbits during SNOs since TLE Epoch: 4/14/2025
SNOs_Map_NOAA-21_TERRA_20250414.jpg

Download SNOs between NOAA-21 and TERRA since TLE EPOCH: 04/14/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and TERRA