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: 9/15/2025
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 09/17/2025 02:00:05 80.14, 110.08 80.07 09/17/2025 02:01:08 80.15, 109.96 80.06 2.45 63
2 09/17/2025 02:50:46 -80.03, -81.35 100.15 09/17/2025 02:50:15 -80.02, -81.33 100.14 0.58 31
3 09/19/2025 07:17:17 -80.05,-148.25 99.28 09/19/2025 07:17:13 -80.06,-148.34 99.26 1.89 4
4 09/21/2025 11:43:50 -80.13, 144.22 98.30 09/21/2025 11:44:12 -80.14, 144.27 98.31 0.88 22
5 09/21/2025 12:34:29 79.97, -46.72 81.41 09/21/2025 12:33:17 79.96, -46.63 81.42 1.99 72
6 09/23/2025 16:10:22 -80.19, 76.96 97.36 09/23/2025 16:11:10 -80.19, 77.08 97.40 2.19 48
7 09/23/2025 17:01:01 80.03,-113.98 82.35 09/23/2025 17:00:15 80.02,-113.84 82.35 3.05 46
8 09/25/2025 20:37:14 -80.71, 3.07 95.34 09/25/2025 20:38:27 -80.85, 3.74 95.36 19.52 73
9 09/25/2025 21:27:33 80.10, 178.72 83.30 09/25/2025 21:27:13 80.09, 178.86 83.29 2.80 20

Figure of NPP and PACE satellite orbits during SNOs since TLE Epoch: 9/15/2025
SNOs_Map_NPP_PACE_20250916.jpg

Download SNOs between NPP and PACE since TLE EPOCH: 09/15/2025 in txt file.

Historial Predications of SNOs between NPP and PACE