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: 9/3/2025
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 09/03/2025 22:30:14 -80.01, -16.09 105.01 09/03/2025 22:30:06 -80.01, -16.14 105.00 0.87 8
2 09/06/2025 02:56:47 -80.08, -83.45 104.09 09/06/2025 02:57:07 -80.08, -83.46 104.10 0.43 20
3 09/06/2025 03:47:16 79.59, 88.56 75.03 09/06/2025 03:46:03 79.54, 88.24 75.06 8.49 73
4 09/08/2025 07:23:18 -80.10,-150.26 103.27 09/08/2025 07:24:06 -80.11,-150.40 103.27 3.04 48
5 09/08/2025 08:13:58 79.95, 18.57 76.47 09/08/2025 08:13:12 79.95, 18.54 76.49 0.63 46
6 09/10/2025 11:50:21 -80.85, 132.30 100.68 09/10/2025 11:51:34 -81.05, 133.10 100.68 26.47 73
7 09/10/2025 12:40:30 80.01, -48.60 77.37 09/10/2025 12:40:11 80.00, -48.62 77.38 0.59 19
8 09/12/2025 17:07:03 80.09,-116.12 78.34 09/12/2025 17:07:10 80.08,-115.98 78.32 2.80 7
9 09/14/2025 21:33:35 80.15, 176.61 79.27 09/14/2025 21:34:08 80.14, 176.76 79.23 2.75 33
10 09/14/2025 22:24:13 -79.97, -14.17 101.07 09/14/2025 22:23:13 -79.98, -14.19 101.03 0.65 60
11 09/17/2025 02:00:04 80.16, 109.92 80.10 09/17/2025 02:01:03 80.16, 109.89 80.08 0.63 59

Figure of NPP and PACE satellite orbits during SNOs since TLE Epoch: 9/3/2025
SNOs_Map_NPP_PACE_20250903.jpg

Download SNOs between NPP and PACE since TLE EPOCH: 09/03/2025 in txt file.

Historial Predications of SNOs between NPP and PACE