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: 3/6/2025
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 03/11/2025 03:22:57 -71.35, -56.29 104.93 03/11/2025 03:21:45 -71.34, -57.35 104.87 37.63 72
2 03/11/2025 04:13:49 71.65, 110.48 75.39 03/11/2025 04:12:38 71.67, 110.53 75.42 2.95 71
3 03/11/2025 05:04:33 -71.66, -82.23 104.62 03/11/2025 05:03:35 -71.68, -82.19 104.59 2.39 58
4 03/11/2025 05:55:19 71.66, 85.09 75.37 03/11/2025 05:54:35 71.66, 85.02 75.38 2.59 44
5 03/11/2025 06:46:03 -71.67,-107.61 104.64 03/11/2025 06:45:32 -71.67,-107.70 104.63 3.11 31
6 03/11/2025 07:36:50 71.71, 59.61 75.40 03/11/2025 07:36:31 71.70, 59.61 75.39 1.62 19
7 03/11/2025 08:27:33 -71.72,-133.09 104.60 03/11/2025 08:27:27 -71.71,-133.12 104.62 2.19 6
8 03/11/2025 09:18:19 71.72, 34.23 75.38 03/11/2025 09:18:26 71.74, 34.20 75.40 2.35 7
9 03/11/2025 10:09:03 -71.73,-158.48 104.63 03/11/2025 10:09:23 -71.74,-158.53 104.61 2.38 20
10 03/11/2025 10:59:50 71.78, 8.75 75.41 03/11/2025 11:00:22 71.78, 8.79 75.41 1.33 32
11 03/11/2025 11:50:34 -71.79, 176.04 104.59 03/11/2025 11:51:19 -71.78, 176.06 104.61 0.75 45
12 03/11/2025 12:41:20 71.78, -16.64 75.39 03/11/2025 12:42:19 71.76, -16.72 75.37 3.50 59
13 03/11/2025 13:32:04 -71.79, 150.66 104.62 03/11/2025 13:33:15 -71.82, 150.65 104.60 3.18 71
14 03/11/2025 14:22:58 72.20, -42.80 75.82 03/11/2025 14:24:08 72.16, -41.44 75.70 46.67 70

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/6/2025
SNOs_Map_NOAA-21_NOAA-19_20250306.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/06/2025 in txt file.

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