Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and PACE Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 3/22/2025
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (PACE) Time (PACE) Lat,Lon (PACE) SZA (PACE ) Distance(km) Time Diff (sec)
1 03/22/2025 20:40:03 -79.95, 11.60 98.70 03/22/2025 20:40:39 -79.95, 11.73 98.74 2.58 36
2 03/22/2025 21:30:42 79.75,-179.14 80.92 03/22/2025 21:29:45 79.74,-179.04 80.93 2.36 57
3 03/25/2025 01:57:08 79.88, 113.04 80.29 03/25/2025 01:57:14 79.88, 113.05 80.28 0.36 6
4 03/27/2025 06:23:33 79.99, 45.40 79.61 03/27/2025 06:24:41 79.99, 45.37 79.59 0.87 68
5 03/27/2025 07:14:10 -79.77,-145.17 100.81 03/27/2025 07:13:45 -79.78,-145.27 100.78 2.00 25
6 03/29/2025 11:40:35 -79.89, 147.16 101.47 03/29/2025 11:41:11 -79.89, 147.03 101.47 2.72 36
7 03/29/2025 12:31:15 79.72, -43.94 78.22 03/29/2025 12:30:18 79.72, -44.03 78.26 1.91 57
8 03/31/2025 16:57:40 79.84,-111.69 77.58 03/31/2025 16:57:43 79.84,-111.76 77.59 1.35 3
9 04/02/2025 21:24:06 80.00,-179.85 77.03 04/02/2025 21:25:08 80.00,-179.83 77.00 0.45 62
10 04/02/2025 22:14:43 -79.78, -10.37 103.40 04/02/2025 22:14:12 -79.79, -10.48 103.37 2.40 31
11 04/05/2025 02:41:08 -79.92, -78.26 104.00 04/05/2025 02:41:35 -79.92, -78.28 104.01 0.38 27

Figure of NPP and PACE satellite orbits during SNOs since TLE Epoch: 3/22/2025
SNOs_Map_NPP_PACE_20250322.jpg

Download SNOs between NPP and PACE since TLE EPOCH: 03/22/2025 in txt file.

Historial Predications of SNOs between NPP and PACE