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: 3/23/2025
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 03/31/2025 03:21:15 70.94, 122.50 66.83 03/31/2025 03:22:23 71.01, 124.43 66.79 70.20 68
2 03/31/2025 04:12:01 -71.37, -69.46 112.80 03/31/2025 04:13:14 -71.40, -68.94 112.80 18.94 73
3 03/31/2025 05:03:00 71.54, 98.10 67.34 03/31/2025 05:04:03 71.54, 98.12 67.33 0.98 63
4 03/31/2025 05:53:54 -71.55, -94.60 112.66 03/31/2025 05:54:47 -71.57, -94.61 112.65 2.04 53
5 03/31/2025 06:44:56 71.57, 72.67 67.35 03/31/2025 06:45:33 71.56, 72.72 67.32 2.56 37
6 03/31/2025 07:35:50 -71.59,-120.02 112.66 03/31/2025 07:36:17 -71.59,-120.01 112.67 0.45 27
7 03/31/2025 08:26:52 71.61, 47.25 67.35 03/31/2025 08:27:04 71.62, 47.23 67.36 1.87 12
8 03/31/2025 09:17:46 -71.62,-145.45 112.66 03/31/2025 09:17:47 -71.60,-145.41 112.68 2.65 1
9 03/31/2025 10:08:48 71.64, 21.83 67.35 03/31/2025 10:08:34 71.64, 21.83 67.35 0.44 14
10 03/31/2025 10:59:42 -71.65,-170.87 112.65 03/31/2025 10:59:18 -71.66,-170.90 112.64 1.71 24
11 03/31/2025 11:50:44 71.67, -3.59 67.36 03/31/2025 11:50:04 71.65, -3.56 67.34 2.74 40
12 03/31/2025 12:41:38 -71.69, 163.71 112.65 03/31/2025 12:40:48 -71.68, 163.70 112.65 0.98 50
13 03/31/2025 13:32:40 71.71, -29.01 67.36 03/31/2025 13:31:35 71.71, -29.06 67.38 1.87 65
14 03/31/2025 14:23:34 -71.72, 138.29 112.65 03/31/2025 14:22:19 -71.74, 138.21 112.61 3.88 75
15 03/31/2025 15:14:25 72.30, -53.33 67.88 03/31/2025 15:13:16 72.29, -55.53 67.98 74.33 69

Figure of NOAA-19 and NPP satellite orbits during SNOs since TLE Epoch: 3/23/2025
SNOs_Map_NOAA-19_NPP_20250323.jpg

Download SNOs between NOAA-19 and NPP since TLE EPOCH: 03/23/2025 in txt file.

Historial Predications of SNOs between NOAA-19 and NPP