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: 9/13/2025
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 12:19:12 79.86, -42.15 78.98 09/15/2025 12:19:08 79.86, -42.29 79.00 2.82 4
2 09/17/2025 16:45:40 79.96,-109.75 79.98 09/17/2025 16:46:08 79.96,-109.82 79.98 1.52 28
3 09/17/2025 17:36:19 -79.79, 59.15 100.31 09/17/2025 17:35:14 -79.79, 59.15 100.28 0.32 65
4 09/19/2025 21:12:06 80.00,-176.79 80.88 09/19/2025 21:13:06 80.00,-176.86 80.87 1.49 60
5 09/19/2025 22:02:46 -79.87, -8.16 99.35 09/19/2025 22:02:13 -79.87, -8.12 99.34 0.73 33
6 09/22/2025 02:29:12 -79.91, -75.21 98.44 09/22/2025 02:29:11 -79.91, -75.20 98.45 0.45 1
7 09/24/2025 06:55:38 -79.96,-142.28 97.53 09/24/2025 06:56:09 -79.96,-142.35 97.54 1.45 31
8 09/24/2025 07:46:19 79.83, 26.33 82.25 09/24/2025 07:45:15 79.83, 26.38 82.27 1.03 64
9 09/26/2025 11:22:06 -80.07, 150.03 96.51 09/26/2025 11:23:08 -80.06, 150.13 96.55 1.96 62

Figure of NOAA-21 and PACE satellite orbits during SNOs since TLE Epoch: 9/13/2025
SNOs_Map_NOAA-21_PACE_20250914.jpg

Download SNOs between NOAA-21 and PACE since TLE EPOCH: 09/13/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and PACE