Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and TERRA Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/10/2025
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (TERRA) Time (TERRA) Lat,Lon (TERRA) SZA (TERRA ) Distance(km) Time Diff (sec)
1 10/11/2025 21:25:51 75.13,-154.65 82.64 10/11/2025 21:26:58 75.03,-152.20 82.43 71.08 67
2 10/11/2025 22:16:23 -74.58, 14.23 97.97 10/11/2025 22:16:26 -74.57, 14.35 97.98 3.69 3
3 10/11/2025 23:07:00 74.17,-177.39 81.60 10/11/2025 23:05:50 74.25,-178.72 81.74 41.28 70
4 10/14/2025 07:47:22 -74.60,-128.58 97.05 10/14/2025 07:48:32 -74.62,-128.62 97.05 2.28 70
5 10/14/2025 08:38:06 74.54, 38.91 82.89 10/14/2025 08:37:51 74.56, 38.91 82.91 2.41 15
6 10/16/2025 18:09:06 74.62,-104.04 83.86 10/16/2025 18:09:56 74.63,-103.98 83.87 2.64 50
7 10/16/2025 18:59:49 -74.54, 63.49 96.22 10/16/2025 18:59:18 -74.54, 63.45 96.22 1.25 31
8 10/19/2025 04:30:49 -74.62, -79.47 95.26 10/19/2025 04:31:22 -74.64, -79.38 95.26 3.20 33
9 10/19/2025 05:21:33 74.56, 88.01 84.69 10/19/2025 05:20:42 74.53, 88.03 84.66 3.16 51
10 10/21/2025 14:52:32 74.60, -54.83 85.58 10/21/2025 14:52:46 74.61, -54.84 85.59 1.38 14
11 10/21/2025 15:43:15 -74.52, 112.69 94.49 10/21/2025 15:42:08 -74.51, 112.57 94.50 3.92 67
12 10/24/2025 00:23:37 74.94, 161.50 86.79 10/24/2025 00:24:47 74.83, 162.60 86.63 34.26 70
13 10/24/2025 01:14:15 -74.62, -30.30 93.55 10/24/2025 01:14:11 -74.61, -30.24 93.56 1.69 4

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 10/10/2025
SNOs_Map_NPP_TERRA_20251010.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 10/10/2025 in txt file.

Historial Predications of SNOs between NPP and TERRA