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: 7/25/2025
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 07/26/2025 13:11:49 -70.27, 157.85 129.02 07/26/2025 13:10:38 -70.24, 156.37 128.96 55.59 71
2 07/26/2025 14:02:44 70.71, -35.56 51.46 07/26/2025 14:01:30 70.73, -35.59 51.49 2.25 74
3 07/26/2025 14:53:28 -70.74, 131.71 128.50 07/26/2025 14:52:25 -70.73, 131.69 128.50 1.81 63
4 07/26/2025 15:44:15 70.77, -61.02 51.54 07/26/2025 15:43:26 70.75, -61.04 51.53 2.30 49
5 07/26/2025 16:34:59 -70.80, 106.24 128.42 07/26/2025 16:34:20 -70.80, 106.33 128.42 3.11 39
6 07/26/2025 17:25:45 70.77, -86.41 51.56 07/26/2025 17:25:22 70.76, -86.49 51.56 2.98 23
7 07/26/2025 18:16:29 -70.80, 80.86 128.40 07/26/2025 18:16:16 -70.82, 80.87 128.39 1.58 13
8 07/26/2025 19:07:16 70.83,-111.88 51.64 07/26/2025 19:07:17 70.84,-111.85 51.64 1.37 1
9 07/26/2025 19:58:00 -70.86, 55.39 128.33 07/26/2025 19:58:12 -70.84, 55.42 128.35 3.05 12
10 07/26/2025 20:48:46 70.83,-137.26 51.66 07/26/2025 20:49:13 70.86,-137.30 51.68 2.89 27
11 07/26/2025 21:39:30 -70.87, 30.01 128.30 07/26/2025 21:40:08 -70.85, 29.97 128.32 1.70 38
12 07/26/2025 22:30:17 70.89,-162.73 51.73 07/26/2025 22:31:09 70.87,-162.75 51.71 1.83 52
13 07/26/2025 23:21:01 -70.92, 4.54 128.23 07/26/2025 23:22:03 -70.93, 4.61 128.24 2.74 62
14 07/27/2025 00:11:50 71.05, 171.63 51.92 07/27/2025 00:13:03 71.00, 171.98 51.84 14.27 73
15 07/27/2025 01:02:41 -71.45, -21.74 127.65 07/27/2025 01:03:50 -71.41, -20.01 127.78 61.33 69

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 7/25/2025
SNOs_Map_NOAA-20_NOAA-19_20250725.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 07/25/2025 in txt file.

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