Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and NOAA-19 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 3/20/2025
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (NOAA-19) Time (NOAA-19) Lat,Lon (NOAA-19) SZA (NOAA-19 ) Distance(km) Time Diff (sec)
1 03/27/2025 04:13:31 71.18, 111.31 68.54 03/27/2025 04:12:20 71.19, 110.07 68.61 44.42 71
2 03/27/2025 05:04:22 -71.54, -81.99 111.11 03/27/2025 05:03:08 -71.52, -82.04 111.10 2.33 74
3 03/27/2025 05:55:08 71.56, 85.28 68.91 03/27/2025 05:54:09 71.58, 85.31 68.94 3.08 59
4 03/27/2025 06:45:52 -71.55,-107.38 111.13 03/27/2025 06:45:04 -71.56,-107.46 111.10 3.28 48
5 03/27/2025 07:36:39 71.62, 59.80 68.94 03/27/2025 07:36:05 71.62, 59.89 68.95 3.22 34
6 03/27/2025 08:27:23 -71.61,-132.86 111.09 03/27/2025 08:27:00 -71.59,-132.88 111.10 1.51 23
7 03/27/2025 09:18:09 71.63, 34.41 68.93 03/27/2025 09:18:02 71.60, 34.38 68.90 2.92 7
8 03/27/2025 10:08:53 -71.61,-158.25 111.11 03/27/2025 10:08:56 -71.63,-158.30 111.09 2.35 3
9 03/27/2025 10:59:39 71.64, 9.02 68.91 03/27/2025 10:59:58 71.64, 8.96 68.91 2.17 19
10 03/27/2025 11:50:24 -71.67, 176.27 111.07 03/27/2025 11:50:52 -71.66, 176.28 111.09 1.36 28
11 03/27/2025 12:41:10 71.70, -16.46 68.94 03/27/2025 12:41:54 71.67, -16.46 68.91 2.64 44
12 03/27/2025 13:31:54 -71.68, 150.88 111.09 03/27/2025 13:32:48 -71.70, 150.86 111.08 1.70 54
13 03/27/2025 14:22:40 71.70, -41.85 68.93 03/27/2025 14:23:50 71.71, -41.88 68.92 0.88 70
14 03/27/2025 15:13:28 -71.90, 125.11 110.89 03/27/2025 15:14:41 -71.88, 125.73 110.94 21.77 73

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/20/2025
SNOs_Map_NOAA-21_NOAA-19_20250320.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/20/2025 in txt file.

Historial Predications of SNOs between NOAA-21 and NOAA-19