Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and NOAA-19 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 8/2/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (NOAA-19) Time (NOAA-19) Lat,Lon (NOAA-19) SZA (NOAA-19 ) Distance(km) Time Diff (sec)
1 08/11/2025 19:57:45 -70.10, 56.62 124.91 08/11/2025 19:56:35 -70.12, 55.00 124.82 61.24 70
2 08/11/2025 20:48:41 70.62,-136.88 55.64 08/11/2025 20:47:27 70.63,-136.91 55.67 1.78 74
3 08/11/2025 21:39:25 -70.63, 30.41 124.33 08/11/2025 21:38:21 -70.65, 30.40 124.30 2.00 64
4 08/11/2025 22:30:12 70.68,-162.35 55.73 08/11/2025 22:29:23 70.65,-162.36 55.71 3.01 49
5 08/11/2025 23:20:56 -70.69, 4.94 124.25 08/11/2025 23:20:17 -70.67, 4.95 124.27 2.49 39
6 08/12/2025 00:11:42 70.68, 172.27 55.75 08/12/2025 00:11:19 70.67, 172.19 55.75 3.34 23
7 08/12/2025 01:02:26 -70.70, -20.44 124.22 08/12/2025 01:02:13 -70.69, -20.51 124.23 2.67 13
8 08/12/2025 01:53:13 70.74, 146.80 55.84 08/12/2025 01:53:14 70.74, 146.82 55.83 1.00 1
9 08/12/2025 02:43:57 -70.76, -45.91 124.14 08/12/2025 02:44:08 -70.76, -45.87 124.14 1.40 11
10 08/12/2025 03:34:43 70.75, 121.41 55.86 08/12/2025 03:35:10 70.76, 121.37 55.87 1.87 27
11 08/12/2025 04:25:27 -70.76, -71.29 124.12 08/12/2025 04:26:04 -70.77, -71.32 124.11 1.94 37
12 08/12/2025 05:16:14 70.81, 95.94 55.95 08/12/2025 05:17:05 70.83, 96.00 55.96 3.18 51
13 08/12/2025 06:06:58 -70.82, -96.76 124.03 08/12/2025 06:08:00 -70.79, -96.78 124.07 2.90 62
14 08/12/2025 06:57:47 70.97, 70.30 56.14 08/12/2025 06:59:00 70.89, 70.64 56.04 14.93 73
15 08/12/2025 07:48:37 -71.29,-122.94 123.51 08/12/2025 07:49:47 -71.27,-121.42 123.60 54.46 70

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 8/2/2025
SNOs_Map_NOAA-20_NOAA-19_20250802.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 08/02/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and NOAA-19