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: 5/20/2025
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 05/21/2025 12:36:51 73.87, -19.62 53.74 05/21/2025 12:37:44 73.87, -19.56 53.72 2.07 53
2 05/21/2025 13:27:34 -73.80, 147.87 126.35 05/21/2025 13:27:07 -73.77, 147.90 126.37 2.97 27
3 05/23/2025 22:58:33 -73.86, 5.00 126.74 05/23/2025 22:59:35 -73.88, 4.95 126.74 2.58 62
4 05/23/2025 23:49:17 73.79, 172.47 53.18 05/23/2025 23:48:54 73.78, 172.43 53.18 1.33 23
5 05/26/2025 09:20:17 73.90, 29.46 52.88 05/26/2025 09:21:21 73.92, 29.55 52.88 3.01 64
6 05/26/2025 10:11:00 -73.82,-163.03 127.22 05/26/2025 10:10:44 -73.83,-162.98 127.21 1.89 16
7 05/28/2025 19:42:00 -73.94, 53.96 127.47 05/28/2025 19:43:11 -73.95, 54.11 127.49 4.67 71
8 05/28/2025 20:32:43 73.83,-138.46 52.40 05/28/2025 20:32:30 73.85,-138.42 52.42 2.77 13
9 05/31/2025 06:03:45 74.05, 78.26 52.30 05/31/2025 06:04:56 74.00, 78.73 52.21 15.50 71
10 05/31/2025 06:54:26 -73.87,-113.97 127.91 05/31/2025 06:54:20 -73.87,-113.90 127.92 2.17 6
11 05/31/2025 07:44:56 73.11, 55.08 51.25 05/31/2025 07:43:50 73.18, 52.38 51.49 87.62 66
12 06/02/2025 16:25:32 -74.29, 102.25 127.75 06/02/2025 16:26:42 -74.20, 103.68 127.93 44.08 70
13 06/02/2025 17:16:08 73.84, -89.32 51.74 06/02/2025 17:16:06 73.84, -89.43 51.75 3.56 2

Figure of NPP and TERRA satellite orbits during SNOs since TLE Epoch: 5/20/2025
SNOs_Map_NPP_TERRA_20250520.jpg

Download SNOs between NPP and TERRA since TLE EPOCH: 05/20/2025 in txt file.

Historial Predications of SNOs between NPP and TERRA