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: 5/9/2025
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 70.50,-128.76 50.69 99.26 65
2 05/18/2025 21:08:33 -71.14, 36.98 128.63 05/18/2025 21:09:46 -71.21, 37.37 128.58 16.10 73
3 05/18/2025 21:59:23 71.31,-155.43 51.53 05/18/2025 22:00:33 71.29,-155.45 51.49 2.77 70
4 05/18/2025 22:50:26 -71.32, 11.82 128.48 05/18/2025 22:51:18 -71.32, 11.81 128.49 0.38 52
5 05/18/2025 23:41:19 71.34, 179.13 51.54 05/18/2025 23:42:04 71.34, 179.08 51.53 1.75 45
6 05/19/2025 00:32:22 -71.35, -13.62 128.47 05/19/2025 00:32:49 -71.37, -13.65 128.45 3.04 27
7 05/19/2025 01:23:15 71.36, 153.69 51.54 05/19/2025 01:23:34 71.34, 153.71 51.52 2.26 19
8 05/19/2025 02:14:18 -71.37, -39.05 128.46 05/19/2025 02:14:19 -71.37, -39.03 128.46 0.74 1
9 05/19/2025 03:05:11 71.39, 128.26 51.55 05/19/2025 03:05:05 71.40, 128.24 51.56 1.16 6
10 05/19/2025 03:56:14 -71.40, -64.49 128.45 05/19/2025 03:55:50 -71.43, -64.50 128.42 3.05 24
11 05/19/2025 04:47:07 71.41, 102.82 51.56 05/19/2025 04:46:35 71.40, 102.86 51.55 2.22 32
12 05/19/2025 05:38:10 -71.42, -89.92 128.44 05/19/2025 05:37:20 -71.43, -89.88 128.43 1.69 50
13 05/19/2025 06:29:03 71.44, 77.38 51.57 05/19/2025 06:28:06 71.45, 77.39 51.59 1.43 57
14 05/19/2025 07:20:06 -71.45,-115.36 128.43 05/19/2025 07:18:51 -71.48,-115.35 128.39 3.37 75
15 05/19/2025 08:10:54 71.72, 52.42 51.82 05/19/2025 08:09:41 71.71, 51.54 51.85 30.78 73

Figure of NOAA-19 and NPP satellite orbits during SNOs since TLE Epoch: 5/9/2025
SNOs_Map_NOAA-19_NPP_20250509.jpg

Download SNOs between NOAA-19 and NPP since TLE EPOCH: 05/09/2025 in txt file.

Historial Predications of SNOs between NOAA-19 and NPP