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: 9/17/2025
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 09/19/2025 07:17:17 -80.05,-148.26 99.28 09/19/2025 07:17:13 -80.06,-148.37 99.26 2.16 4
2 09/21/2025 11:43:49 -80.11, 144.52 98.35 09/21/2025 11:44:11 -80.10, 144.53 98.36 0.46 22
3 09/21/2025 12:34:29 79.97, -46.71 81.41 09/21/2025 12:33:17 79.96, -46.64 81.43 1.55 72
4 09/23/2025 16:10:21 -80.16, 77.27 97.41 09/23/2025 16:11:09 -80.16, 77.34 97.45 1.36 48
5 09/23/2025 17:01:01 80.03,-113.97 82.35 09/23/2025 17:00:15 80.02,-113.86 82.35 2.28 46
6 09/25/2025 20:37:09 -80.61, 4.80 95.61 09/25/2025 20:38:22 -80.71, 5.36 95.64 15.17 73
7 09/25/2025 21:27:32 80.07, 179.05 83.24 09/25/2025 21:27:12 80.06, 179.13 83.23 1.67 20
8 09/28/2025 01:54:03 80.10, 112.05 84.13 09/28/2025 01:54:09 80.10, 112.03 84.13 0.45 6
9 09/30/2025 06:20:35 80.17, 44.72 85.08 09/30/2025 06:21:06 80.15, 44.85 85.05 2.68 31

Figure of NPP and PACE satellite orbits during SNOs since TLE Epoch: 9/17/2025
SNOs_Map_NPP_PACE_20250918.jpg

Download SNOs between NPP and PACE since TLE EPOCH: 09/17/2025 in txt file.

Historial Predications of SNOs between NPP and PACE