Simultaneous Nadir Overpasses (SNOs) Predictions

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

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/13/2025
Index Date (NOAA-19) Time (NOAA-19) Lat,Lon (NOAA-19) SZA (NOAA-19 ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 05/18/2025 20:17:43 70.46,-131.43 50.74 05/18/2025 20:18:48 70.51,-128.77 50.70 98.97 65
2 05/18/2025 21:08:32 -71.19, 37.06 128.59 05/18/2025 21:09:46 -71.23, 37.35 128.57 11.21 74
3 05/18/2025 21:59:23 71.31,-155.44 51.52 05/18/2025 22:00:33 71.30,-155.47 51.50 1.66 70
4 05/18/2025 22:50:26 -71.31, 11.81 128.48 05/18/2025 22:51:18 -71.33, 11.79 128.47 2.01 52
5 05/18/2025 23:41:19 71.34, 179.12 51.53 05/18/2025 23:42:04 71.35, 179.07 51.54 2.71 45
6 05/19/2025 00:32:22 -71.34, -13.63 128.47 05/19/2025 00:32:48 -71.33, -13.59 128.49 1.66 26
7 05/19/2025 01:23:15 71.36, 153.69 51.54 05/19/2025 01:23:34 71.35, 153.69 51.53 0.93 19
8 05/19/2025 02:14:18 -71.37, -39.06 128.46 05/19/2025 02:14:19 -71.39, -39.06 128.45 2.16 1
9 05/19/2025 03:05:11 71.39, 128.25 51.55 05/19/2025 03:05:05 71.41, 128.22 51.57 2.43 6
10 05/19/2025 03:56:14 -71.39, -64.50 128.45 05/19/2025 03:55:49 -71.39, -64.43 128.46 2.44 25
11 05/19/2025 04:47:07 71.41, 102.81 51.56 05/19/2025 04:46:35 71.41, 102.84 51.56 1.13 32
12 05/19/2025 05:38:10 -71.42, -89.94 128.44 05/19/2025 05:37:20 -71.44, -89.90 128.42 2.67 50
13 05/19/2025 06:29:03 71.44, 77.38 51.57 05/19/2025 06:28:06 71.46, 77.37 51.60 2.61 57
14 05/19/2025 07:20:06 -71.45,-115.37 128.43 05/19/2025 07:18:50 -71.44,-115.28 128.43 3.28 76
15 05/19/2025 08:10:54 71.72, 52.42 51.82 05/19/2025 08:09:41 71.72, 51.53 51.86 31.17 73

Figure of NOAA-19 and NPP satellite orbits during SNOs since TLE Epoch: 5/13/2025
SNOs_Map_NOAA-19_NPP_20250513.jpg

Download SNOs between NOAA-19 and NPP since TLE EPOCH: 05/13/2025 in txt file.

Historial Predications of SNOs between NOAA-19 and NPP