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: 4/9/2025
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 04/10/2025 02:45:53 -73.68, -51.53 114.13 04/10/2025 02:47:01 -73.66, -51.49 114.17 2.68 68
2 04/10/2025 03:36:37 73.55, 116.06 65.72 04/10/2025 03:36:22 73.55, 115.97 65.73 2.93 15
3 04/12/2025 13:07:45 73.99, -27.73 65.32 04/12/2025 13:08:55 73.85, -26.62 65.10 37.59 70
4 04/12/2025 13:58:21 -73.61, 140.50 115.12 04/12/2025 13:58:20 -73.58, 140.49 115.15 3.03 1
5 04/12/2025 14:48:56 73.04, -50.91 64.25 04/12/2025 14:47:48 73.10, -52.81 64.42 61.91 68
6 04/15/2025 00:20:08 73.64, 164.99 64.04 04/15/2025 00:20:17 73.62, 165.02 64.01 3.23 9
7 04/15/2025 01:10:50 -73.56, -27.49 116.08 04/15/2025 01:09:38 -73.57, -27.41 116.05 2.97 72
8 04/17/2025 10:41:52 -73.66,-170.47 116.82 04/17/2025 10:42:14 -73.68,-170.39 116.81 3.34 22
9 04/17/2025 11:32:36 73.55, -2.92 63.06 04/17/2025 11:31:35 73.55, -2.99 63.07 2.27 61
10 04/19/2025 21:03:38 73.68,-145.94 62.36 04/19/2025 21:04:10 73.66,-145.96 62.33 2.19 32
11 04/19/2025 21:54:20 -73.58, 21.61 117.77 04/19/2025 21:53:32 -73.57, 21.53 117.76 2.39 48
12 04/22/2025 07:25:22 -73.70,-121.43 118.45 04/22/2025 07:26:06 -73.70,-121.41 118.47 0.74 44
13 04/22/2025 08:16:06 73.61, 46.10 61.44 04/22/2025 08:15:26 73.60, 46.07 61.44 1.26 40

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 4/9/2025
SNOs_Map_NPP_TERRA_20250409.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 04/09/2025 in txt file.

Historial Predications of SNOs between NPP and TERRA