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: 5/15/2025
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 70.47,-131.41 50.75 05/18/2025 20:18:49 70.55,-128.83 50.74 95.95 66
2 05/18/2025 21:08:33 -71.15, 36.99 128.63 05/18/2025 21:09:46 -71.21, 37.37 128.58 15.43 73
3 05/18/2025 21:59:24 71.27,-155.50 51.49 05/18/2025 22:00:33 71.28,-155.44 51.49 2.58 69
4 05/18/2025 22:50:26 -71.33, 11.83 128.47 05/18/2025 22:51:18 -71.32, 11.81 128.49 1.18 52
5 05/18/2025 23:41:19 71.35, 179.15 51.55 05/18/2025 23:42:04 71.34, 179.09 51.53 2.63 45
6 05/19/2025 00:32:22 -71.35, -13.60 128.46 05/19/2025 00:32:49 -71.37, -13.65 128.45 2.66 27
7 05/19/2025 01:23:15 71.38, 153.71 51.56 05/19/2025 01:23:35 71.39, 153.63 51.57 3.49 20
8 05/19/2025 02:14:18 -71.38, -39.04 128.45 05/19/2025 02:14:19 -71.37, -39.03 128.46 0.81 1
9 05/19/2025 03:05:11 71.40, 128.28 51.56 05/19/2025 03:05:05 71.39, 128.25 51.56 1.60 6
10 05/19/2025 03:56:14 -71.41, -64.48 128.44 05/19/2025 03:55:50 -71.43, -64.50 128.42 2.41 24
11 05/19/2025 04:47:07 71.43, 102.84 51.57 05/19/2025 04:46:36 71.44, 102.78 51.60 2.93 31
12 05/19/2025 05:38:10 -71.43, -89.91 128.43 05/19/2025 05:37:20 -71.43, -89.88 128.43 1.33 50
13 05/19/2025 06:29:03 71.45, 77.40 51.58 05/19/2025 06:28:06 71.45, 77.40 51.58 0.76 57
14 05/19/2025 07:20:06 -71.46,-115.35 128.42 05/19/2025 07:18:51 -71.48,-115.35 128.39 2.53 75
15 05/19/2025 08:10:54 71.73, 52.45 51.84 05/19/2025 08:09:42 71.76, 51.46 51.90 34.51 72

Figure of NOAA-19 and NPP satellite orbits during SNOs since TLE Epoch: 5/15/2025
SNOs_Map_NOAA-19_NPP_20250515.jpg

Download SNOs between NOAA-19 and NPP since TLE EPOCH: 05/15/2025 in txt file.

Historial Predications of SNOs between NOAA-19 and NPP