Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and PACE Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/14/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (PACE) Time (PACE) Lat,Lon (PACE) SZA (PACE ) Distance(km) Time Diff (sec)
1 09/15/2025 12:19:13 79.87, -42.33 79.01 09/15/2025 12:19:09 79.88, -42.46 79.04 2.77 4
2 09/17/2025 16:45:39 79.94,-109.63 79.96 09/17/2025 16:46:07 79.95,-109.70 79.96 1.40 28
3 09/17/2025 17:36:18 -79.78, 59.26 100.33 09/17/2025 17:35:13 -79.78, 59.26 100.30 0.08 65
4 09/19/2025 21:12:06 80.02,-176.97 80.92 09/19/2025 21:13:06 80.02,-177.03 80.90 1.22 60
5 09/19/2025 22:02:45 -79.86, -8.05 99.37 09/19/2025 22:02:12 -79.85, -8.01 99.37 0.99 33
6 09/22/2025 02:29:12 -79.93, -75.40 98.41 09/22/2025 02:29:11 -79.93, -75.36 98.41 0.70 1
7 09/24/2025 06:55:38 -79.98,-142.48 97.49 09/24/2025 06:56:09 -79.98,-142.51 97.50 0.85 31
8 09/24/2025 07:46:18 79.82, 26.43 82.23 09/24/2025 07:45:14 79.81, 26.50 82.24 1.57 64
9 09/26/2025 11:22:06 -80.08, 149.82 96.47 09/26/2025 11:23:08 -80.08, 149.97 96.52 2.84 62

Figure of NOAA-21 and PACE satellite orbits during SNOs since TLE Epoch: 9/14/2025
SNOs_Map_NOAA-21_PACE_20250915.jpg

Download SNOs between NOAA-21 and PACE since TLE EPOCH: 09/14/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and PACE