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: 3/19/2025
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 03/19/2025 03:48:59 73.51, 113.01 74.25 03/19/2025 03:49:52 73.53, 112.98 74.26 2.19 53
2 03/19/2025 04:39:41 -73.44, -79.51 105.84 03/19/2025 04:39:14 -73.42, -79.58 105.86 3.46 27
3 03/21/2025 14:10:45 -74.05, 136.33 106.11 03/21/2025 14:11:53 -73.94, 138.25 106.36 60.50 68
4 03/21/2025 15:01:20 73.50, -55.03 73.25 03/21/2025 15:01:21 73.48, -55.05 73.23 2.47 1
5 03/21/2025 15:51:57 -73.17, 113.01 107.13 03/21/2025 15:50:45 -73.26, 112.18 106.98 28.25 72
6 03/24/2025 01:22:56 -73.56, -30.56 107.66 03/24/2025 01:23:27 -73.56, -30.45 107.67 3.45 31
7 03/24/2025 02:13:40 73.44, 137.01 72.21 03/24/2025 02:12:48 73.47, 137.03 72.24 2.43 52
8 03/26/2025 11:44:32 73.54, -5.92 71.37 03/26/2025 11:45:32 73.55, -6.04 71.37 3.68 60
9 03/26/2025 12:35:15 -73.51, 161.46 108.68 03/26/2025 12:34:53 -73.50, 161.51 108.70 2.76 22
10 03/28/2025 22:06:20 -74.21, 17.06 108.84 03/28/2025 22:07:27 -74.10, 19.58 109.11 77.35 67
11 03/28/2025 22:56:52 73.52,-173.95 70.37 03/28/2025 22:56:57 73.53,-173.98 70.38 1.79 5
12 03/28/2025 23:47:32 -73.34, -6.22 109.85 03/28/2025 23:46:19 -73.42, -6.53 109.73 13.81 73
13 03/31/2025 09:18:27 -73.56,-149.43 110.54 03/31/2025 09:19:01 -73.56,-149.48 110.55 1.75 34
14 03/31/2025 10:09:12 73.51, 18.00 69.39 03/31/2025 10:08:21 73.51, 18.08 69.39 2.38 51

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 3/19/2025
SNOs_Map_NPP_TERRA_20250319.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 03/19/2025 in txt file.

Historial Predications of SNOs between NPP and TERRA