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: 3/2/2025
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 02:32:03 70.87, 137.21 74.58 03/11/2025 02:30:57 70.82, 134.48 74.69 99.78 66
2 03/11/2025 03:22:56 -71.35, -56.29 104.93 03/11/2025 03:21:44 -71.35, -57.32 104.86 36.73 72
3 03/11/2025 04:13:48 71.65, 110.47 75.39 03/11/2025 04:12:38 71.63, 110.45 75.39 2.74 70
4 03/11/2025 05:04:32 -71.66, -82.23 104.62 03/11/2025 05:03:35 -71.64, -82.26 104.62 2.47 57
5 03/11/2025 05:55:18 71.66, 85.09 75.37 03/11/2025 05:54:34 71.67, 85.04 75.39 1.92 44
6 03/11/2025 06:46:02 -71.67,-107.61 104.64 03/11/2025 06:45:31 -71.68,-107.67 104.62 2.63 31
7 03/11/2025 07:36:49 71.72, 59.61 75.41 03/11/2025 07:36:30 71.71, 59.63 75.40 1.36 19
8 03/11/2025 08:27:33 -71.73,-133.09 104.60 03/11/2025 08:27:27 -71.72,-133.09 104.61 0.75 6
9 03/11/2025 09:18:19 71.72, 34.22 75.39 03/11/2025 09:18:26 71.75, 34.22 75.41 2.48 7
10 03/11/2025 10:09:03 -71.73,-158.48 104.63 03/11/2025 10:09:23 -71.76,-158.50 104.60 2.94 20
11 03/11/2025 10:59:50 71.78, 8.74 75.42 03/11/2025 11:00:22 71.78, 8.81 75.41 2.29 32
12 03/11/2025 11:50:34 -71.79, 176.04 104.59 03/11/2025 11:51:19 -71.79, 176.09 104.60 1.64 45
13 03/11/2025 12:41:20 71.79, -16.64 75.40 03/11/2025 12:42:19 71.77, -16.70 75.37 2.62 59
14 03/11/2025 13:32:04 -71.79, 150.66 104.61 03/11/2025 13:33:16 -71.78, 150.58 104.64 3.17 72
15 03/11/2025 14:22:58 72.21, -42.81 75.82 03/11/2025 14:24:08 72.16, -41.42 75.70 47.61 70

Figure of NOAA-21 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 3/2/2025
SNOs_Map_NOAA-21_NOAA-19_20250302.jpg

Download SNOs between NOAA-21 and NOAA-19 since TLE EPOCH: 03/02/2025 in txt file.

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