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: 7/26/2025
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 13:11:48 -70.25, 157.87 129.04 07/26/2025 13:10:37 -70.26, 156.40 128.94 55.54 71
2 07/26/2025 14:02:44 70.74, -35.61 51.50 07/26/2025 14:01:29 70.74, -35.55 51.51 2.04 75
3 07/26/2025 14:53:27 -70.72, 131.74 128.52 07/26/2025 14:52:24 -70.74, 131.72 128.49 2.31 63
4 07/26/2025 15:44:14 70.75, -60.99 51.52 07/26/2025 15:43:25 70.76, -61.00 51.54 1.90 49
5 07/26/2025 16:34:58 -70.78, 106.27 128.44 07/26/2025 16:34:20 -70.76, 106.27 128.45 2.05 38
6 07/26/2025 17:25:45 70.80, -86.46 51.59 07/26/2025 17:25:21 70.78, -86.45 51.58 2.38 24
7 07/26/2025 18:16:28 -70.79, 80.89 128.42 07/26/2025 18:16:16 -70.78, 80.82 128.42 2.68 12
8 07/26/2025 19:07:15 70.81,-111.84 51.62 07/26/2025 19:07:17 70.80,-111.90 51.61 2.35 2
9 07/26/2025 19:57:59 -70.84, 55.42 128.34 07/26/2025 19:58:11 -70.85, 55.45 128.34 1.63 12
10 07/26/2025 20:48:46 70.87,-137.31 51.69 07/26/2025 20:49:12 70.87,-137.27 51.69 1.90 26
11 07/26/2025 21:39:29 -70.85, 30.04 128.32 07/26/2025 21:40:07 -70.87, 30.00 128.30 2.88 38
12 07/26/2025 22:30:16 70.87,-162.70 51.71 07/26/2025 22:31:08 70.89,-162.72 51.73 2.49 52
13 07/26/2025 23:21:00 -70.90, 4.57 128.25 07/26/2025 23:22:03 -70.89, 4.55 128.27 1.71 63
14 07/27/2025 00:11:49 71.03, 171.66 51.90 07/27/2025 00:13:02 71.02, 172.01 51.86 13.05 73
15 07/27/2025 01:02:40 -71.43, -21.71 127.67 07/27/2025 01:03:50 -71.37, -20.08 127.81 58.25 70

Figure of NOAA-20 and NOAA-19 satellite orbits during SNOs since TLE Epoch: 7/26/2025
SNOs_Map_NOAA-20_NOAA-19_20250726.jpg

Download SNOs between NOAA-20 and NOAA-19 since TLE EPOCH: 07/26/2025 in txt file.

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