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: 4/8/2025
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 04/16/2025 09:17:18 -70.66,-146.64 119.55 04/16/2025 09:18:25 -70.72,-144.09 119.59 94.04 67
2 04/16/2025 10:08:09 71.18, 21.51 60.92 04/16/2025 10:09:21 71.22, 22.37 60.92 31.51 72
3 04/16/2025 10:58:59 -71.46,-170.71 118.83 04/16/2025 11:00:09 -71.45,-170.70 118.86 1.28 70
4 04/16/2025 11:50:00 71.47, -3.46 61.16 04/16/2025 11:50:56 71.48, -3.46 61.17 1.70 56
5 04/16/2025 12:40:55 -71.49, 163.86 118.83 04/16/2025 12:41:40 -71.50, 163.83 118.83 1.37 45
6 04/16/2025 13:31:56 71.50, -28.88 61.17 04/16/2025 13:32:26 71.48, -28.83 61.14 2.66 30
7 04/16/2025 14:22:51 -71.52, 138.43 118.83 04/16/2025 14:23:10 -71.50, 138.46 118.86 2.84 19
8 04/16/2025 15:13:52 71.53, -54.31 61.17 04/16/2025 15:13:57 71.53, -54.29 61.17 0.72 5
9 04/16/2025 16:04:47 -71.55, 113.01 118.82 04/16/2025 16:04:41 -71.55, 112.99 118.83 0.72 6
10 04/16/2025 16:55:47 71.56, -79.74 61.17 04/16/2025 16:55:27 71.58, -79.76 61.20 2.76 20
11 04/16/2025 17:46:42 -71.58, 87.58 118.82 04/16/2025 17:46:11 -71.60, 87.53 118.80 2.44 31
12 04/16/2025 18:37:43 71.59,-105.17 61.18 04/16/2025 18:36:57 71.58,-105.13 61.17 1.44 46
13 04/16/2025 19:28:38 -71.62, 62.15 118.82 04/16/2025 19:27:41 -71.60, 62.16 118.83 1.97 57
14 04/16/2025 20:19:39 71.62,-130.59 61.18 04/16/2025 20:18:28 71.63,-130.60 61.20 1.41 71
15 04/16/2025 21:10:29 -71.90, 37.21 118.57 04/16/2025 21:09:16 -71.85, 36.31 118.58 31.62 73

Figure of NOAA-19 and NPP satellite orbits during SNOs since TLE Epoch: 4/8/2025
SNOs_Map_NOAA-19_NPP_20250408.jpg

Download SNOs between NOAA-19 and NPP since TLE EPOCH: 04/08/2025 in txt file.

Historial Predications of SNOs between NOAA-19 and NPP